CN110000079B - A powder coating packaging machine for screening particles - Google Patents

Abstract

The invention belongs to the technical field of packaging equipment, and in particular relates to a powder coating packaging machine for screening particles. It is fixedly installed on a fixed bracket; in the present invention, the powder coating packaging machine can screen the powder coating from the hopper with particles of different sizes through the fine sieve cylinder and the coarse sieve cylinder that alternately rise and fall, thereby improving the screening of the coating. efficiency; the powder coating packaging machine in the present invention only needs a self-locking motor to drive the coarse sieve cylinder and the fine sieve cylinder to move up and down alternately through the first rack and the second rack, thereby realizing automatic Screening, thereby reducing the production cost of the equipment, simplifying the control system of the motor, making the equipment easier to operate.

Description

A powder coating packaging machine for screening particles

technical field

The invention belongs to the technical field of packaging equipment, and in particular relates to a powder coating packaging machine for screening particles.

Background technique

At present, traditional powder coatings have the characteristics of less components, no solvent volatilization, no pollution and high mechanical strength of the coating film, and are widely used in the coating of product shells in various industries such as automobiles and home appliances; with the continuous increase in market demand , The production technology of powder coatings is also constantly improving, and various technologies for the production of powder coatings are constantly being improved. However, in the production process of existing powder coatings, it is still necessary to manually screen the ground powder coatings by particle size. The screening time is long, the screening effect is poor and the work efficiency is low.

The present invention designs a powder coating packaging machine for screening particles to solve the above problems.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned defects in the prior art, the present invention discloses a powder coating packaging machine for screening particles, which is realized by adopting the following technical solutions.

It should be noted in the description of the present invention that the terms "inside", "bottom", "upper", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the azimuth or positional relationship that the product of the invention is accustomed to swing when it is used. The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. limit. Furthermore, the terms "first", "second", etc. are only used to differentiate the description and should not be construed to indicate or imply relative importance.

A powder coating packaging machine for screening particles is characterized in that: it includes a blanking ring cylinder mechanism, a transmission mechanism, a rotating cylinder, a gear ring, a rotating positioning ring, a first connecting plate, a second connecting plate, and a first rotating ring block , the second rotating ring block, the rotating round block, the fine screen cylinder, the second rack, the coarse screen cylinder, the first rack, the third gear, the electric drive module, the third fixed base, the feeding pipe, the fixed bracket, among which The blanking ring cylinder mechanism with the transmission mechanism installed inside is fixedly installed on the fixed bracket; the rotating cylinder with the rotating positioning ring fixedly installed on the outer cylindrical surface of the lower end is installed on the upper end of the blanking ring cylinder mechanism; the gear ring is fixedly installed on the upper end of the rotating cylinder; Two first connecting plates are evenly installed on the inner cylindrical surface of the upper end of the rotating drum along the circumferential direction, and the first rotating ring block, the second rotating ring block and the rotating circle block which are nested with each other are distributed symmetrically through two and are respectively connected with the two. A second connecting plate connected to a first connecting plate is concentrically installed at the lower end of the interior of the rotating drum.

A fine sieve cylinder with a number of fine sieve grooves evenly distributed along the circumferential direction on the outer cylindrical surface is embedded in the annular gap between the rotating circular block at the center position and the second rotating ring block; the lower end of the fine sieve cylinder is installed with a transmission mechanism The second gear rack that matches; a coarse screen cylinder with a number of coarse screen grooves evenly distributed along the circumferential direction on the outer cylindrical surface is embedded in the annular gap between the second rotating ring block and the first rotating ring block; the lower end of the coarse screen cylinder A first gear rack matched with the transmission mechanism is installed; a third gear meshing with the gear ring is installed on the output shaft of the electric drive module installed on the unloading ring barrel mechanism through the third fixed base.

The above-mentioned blanking ring tube mechanism includes an outer stepped tube, an inner stepped tube, and a base circular plate, wherein the outer stepped tube with a circumferential groove on the inner cylindrical surface of the upper end is sleeved with an inner stepped tube, and between the outer stepped tube and the inner stepped tube. Fixed by several symmetrically distributed connecting blocks, the base circular plate with the blanking hole on the center plate surface is fixedly installed in the inner stepped cylinder; the rotary positioning ring rotates and slides in the ring groove; the gap between the outer stepped cylinder and the inner stepped cylinder The annular space corresponds to the annular interval between the rotating drum and the first rotating ring block; the feeding hole on the base circular plate is connected with the through hole at the center of the upper rotating circular block through the feeding pipe.

The above-mentioned transmission mechanism includes a second base shell, a differential mechanism, a second gear, a fixed block, a limit block, a limit spring, a limit wheel, and a self-locking motor, wherein the second base shell is fixedly installed on the base circular plate, The differential mechanism is installed in the second base shell through the second fixed base; one output shaft of the differential mechanism is installed with a second gear meshing with the first rack, and the other output shaft is coaxially installed with a limit wheel and the second gear meshing with the second rack; the fixed block fixedly installed on the second base shell has a circular groove, and the circular groove is in clearance fit with the limit wheel; the limit block is slidably installed on the first In the two limit slots, one end of the limit block with two inclined planes intersecting up and down is matched with the first limit slot on the outer cylindrical surface of the limit wheel; the self-locking motor is installed on the second base shell through the first fixed base , and its output shaft is connected with the differential input shaft in the differential mechanism; the limit spring is located in the second limit groove to play a reset function on the movement of the limit block.

As a further improvement of the present technology, the upper end surface of the above-mentioned rotating circular block, the upper end surface of the first rotating ring block and the upper end surface of the second rotating ring block are located in the same horizontal plane, so as to ensure the first rotating ring block and the second rotating ring block. The powder coating will not be retained, so that the screened powder coating will all move to the rotating drum and fall into the packaging bag through the unloading ring drum mechanism.

As a further improvement of this technology, in the initial state, the bottom surface of the fine sieve groove on the fine sieve drum, the upper end surface of the coarse sieve drum and the upper end surface of the rotating block are located in the same horizontal plane, so as to ensure that the powder in the fine sieve drum is located in the same horizontal plane. The smaller particles in the paint can all be screened out from the fine screen groove, and the powder coating screened from the fine screen groove can move to the rotating drum without being blocked by the coarse screen groove and fall into the rotary drum through the feeding ring mechanism. inside the packaging bag.

As a further improvement of the present technology, when the above-mentioned coarse sieve drum moves upward along the annular gap between the first rotating ring block and the second rotating ring block to the limit position, the bottom surface of the coarse sieve groove on the coarse sieve drum, the fine sieve drum The upper end face of the sieve and the upper end face of the rotating block are located in the same horizontal plane to ensure that the upper end face of the fine sieve cylinder does not block the powder coating, and the powder coating from the fine sieve cylinder moves completely to the coarse sieve cylinder; it is located in the coarse sieve cylinder. The smaller particles in the powder coating can be all sieved out through the coarse sieve groove without being blocked by the bottom surface of the coarse sieve groove.

As a further improvement of the present technology, the two opposite side walls of the second base shell are respectively provided with vertical trapezoidal guide grooves, and one side wall of the second base shell without the trapezoidal guide groove is opened with a through hole. The fourth shaft hole and the fifth shaft hole of the first rack; the first trapezoidal guide block is installed on the lower end side of the first rack, and the first trapezoidal guide block slides in the corresponding trapezoidal guide groove on the inner wall of the second base shell; the second tooth A second trapezoidal guide block is installed on the lower end side of the bar, and the second trapezoidal guide block slides in another trapezoidal guide groove on the inner wall of the second base shell to play a guiding role for the movement of the first rack and the second rack.

As a further improvement of the present technology, a differential spring is installed on the lower end of the second gear, and the lower end of the differential spring is connected to the inner bottom of the second base housing; the differential spring is always in a compressed state.

As a further improvement of this technology, there is an annular distance between the first rotating ring block and the inner cylindrical surface of the rotating drum, which ensures that the powder coating screened by the coarse screen drum or the fine screen drum can pass through the first rotating ring block and the rotating drum. There is an annular spacing between the inner cylindrical surfaces, and then falls into the packaging bag through the unloading ring cylinder mechanism.

As a further improvement of the present technology, the upper end of the above-mentioned connecting block is a tip formed by two intersecting inclined surfaces. The connecting block of this structure will not retain part of the powder coating, so as to ensure that the connection between the first rotating ring block and the inner cylindrical surface of the rotating cylinder is not blocked. The powder coating falling with the annular spacing all falls into the packing tape.

As a further improvement of the present technology, the above differential mechanism includes a first base housing, a first shaft hole, a gear barrel, a second bevel gear, a second output shaft, a first bevel gear, a first output shaft, a first gear, A differential input shaft, wherein two opposite sides of the first base shell are provided with a second axle hole and a third axle hole with concentric axes, and the side with the third axle hole is provided with a first axle hole; the outer cylinder The gear barrel with the tooth surface is installed in the first base shell through the second output shaft, one end of the second output shaft protrudes from the third shaft hole, the second output shaft and the third shaft hole are matched by bearings, and the second output shaft Bearings are matched between the shaft and the gear barrel; a second bevel gear is fixedly installed on one end of the second output shaft located in the gear barrel; the two second bevel gears are respectively uniformly distributed in the circumferential direction through the corresponding shafts matched with the bearings. It is installed on the inner cylindrical surface of the gear barrel, and the two second bevel gears mesh with the first bevel gear on the second output shaft; the end of the first output shaft, which is matched with the second shaft hole bearing, is located in the housing of the first base A first bevel gear is fixedly installed on the top, and the first bevel gear meshes with two second bevel gears; the central axis of the first shaft hole and the second shaft hole coincide; the differential input shaft matched with the first shaft hole bearing A first gear is fixedly mounted on one end located in the first base shell, and the first gear is engaged with the gear barrel.

One end of the second output shaft on which the second gear is installed passes through the fourth shaft hole and protrudes out of the outer side of the second base shell, the limit wheel is installed on the end of the second output shaft which is located on the outer side of the second base shell, and the second gear is connected to the outer side of the second base shell. The second output shaft is keyed, the limit wheel and the second output shaft are keyed; the differential input shaft is connected to the output shaft of the self-locking motor through the fifth shaft hole.

The self-locking motor in the present invention is connected with the remote control system.

The electric drive module in the present invention is in the prior art, which is composed of a reducer and a motor, the output shaft of the motor is connected with the input shaft of the reducer; the third gear is installed on the output shaft of the reducer.

In the present invention, the annular space between the outer stepped cylinder and the inner stepped cylinder corresponds to the annular interval between the rotating cylinder and the first rotating ring block, which is beneficial to the powder leaking from the annular interval between the rotating cylinder and the first rotating ring block. The paint falls directly between the outer stepped barrel and the inner stepped barrel and is packed into a packaging bag located below the outer stepped barrel and the inner stepped barrel.

The differential gear mechanism in the present invention has the same working principle as the differential gear in the automobile. The first output shaft, the second output shaft and the differential input shaft in the differential gear mechanism are the same as the two output half shafts in the differential gear of the automobile. Corresponds to the drive input shaft.

Compared with the traditional powder coating packaging machine, the powder coating packaging machine in the present invention can screen the powder coating from the hopper with different sizes of particles through the fine screen cylinder and the coarse screen cylinder that alternately rise and fall, and the powder coating from the hopper can be screened. The powder coatings mixed with large and small particles are screened and classified by coarse and fine particles, and then the powder coatings of different sizes are put into different packaging bags, thereby improving the screening efficiency of the coatings; traditional screening of powder coatings The equipment needs to realize the alternate lifting between the fine sieve drum and the coarse sieve drum through the alternate work of two motors, and the powder coating packaging machine in the present invention only needs a self-locking motor to pass the first rack and the second rack. The two racks respectively drive the coarse sieve cylinder and the fine sieve cylinder to rise and fall alternately, thereby realizing automatic screening of powder coatings, thereby reducing the production cost of the equipment, simplifying the control system of the motor, and making the equipment easier to operate; The invention has simple structure and good use effect.

Description of drawings

Figure 1 is a schematic diagram of a powder coating packaging machine.

Figure 2 is a partial cross-sectional schematic diagram of the powder coating packaging machine.

FIG. 3 is a schematic diagram of the cooperation of the rotating cylinder, the gear ring, the rotating positioning ring, the first connecting plate, the second connecting plate, the first rotating ring block, the second rotating ring block and the rotating round block.

4 is a schematic cross-sectional view of the mating of the rotating cylinder, the gear ring, the rotating positioning ring, the first connecting plate, the second connecting plate, the first rotating ring block, the second rotating ring block and the rotating round block.

Figure 5 is a schematic diagram of the coordination of the fine screen drum, the second rack, the second trapezoidal guide block and the differential spring.

Figure 6 is a schematic diagram of the cooperation of the coarse screen drum, the first rack and the first trapezoidal guide block.

Figure 7 is a schematic diagram of the transmission mechanism.

FIG. 8 is a schematic cross-sectional view of the transmission mechanism, the first rack and the second rack.

FIG. 9 is a schematic diagram of the cooperation of the transmission mechanism, the first rack, the second rack and the differential spring.

Fig. 10 is a perspective view of the second base shell.

11 is a schematic cross-sectional view of the trapezoidal guide groove in the second base housing.

FIG. 12 is a schematic cross-sectional view of the fitting of the fixed block, the limit block, the limit spring and the limit wheel.

Fig. 13 is a perspective view of the fixed block.

Figure 14 is a perspective view of the limit wheel.

Figure 15 is a schematic diagram of the blanking ring barrel mechanism.

Figure 16 is a schematic sectional view of the blanking ring barrel mechanism.

Figure 17 is a schematic perspective view of the differential mechanism.

18 is a schematic cross-sectional view of the differential mechanism.

FIG. 19 is a schematic cross-sectional view of the mating of two first bevel gears, a third bevel gear, a gear barrel and a first gear in the differential mechanism.

Fig. 20 is a perspective schematic view of the first base shell.

Figure 21 is a schematic diagram of the internal transmission of the differential mechanism.

Figure 22 is a perspective view of the connection block.

Figure 23 is a schematic cross-sectional view of the differential mechanism and the self-locking motor.

Label names in the figure: 1. Feeding ring cylinder mechanism; 2. Outer stepped cylinder; 3. Ring groove; 4. Inner stepped cylinder; 5. Base circular plate; 6. Blanking hole; 7. Connection block; 8. Transmission Mechanism; 9. Second base shell; 10. Trapezoidal guide groove; 11. Fourth shaft hole; 12. Fifth shaft hole; 13. Differential mechanism; 14. Second gear; 15. Fixed block; 16. Circle slot; 17, the second limit slot; 18, the limit block; 19, the limit spring; 20, the limit wheel; 21, the first limit slot; 22, the self-locking motor; 23, the first fixed base; 24 25, rotating cylinder; 26, gear ring; 27, rotating positioning ring; 28, first connecting plate; 29, second connecting plate; 30, first rotating ring block; 31, second rotating ring block; 32, rotary block; 33, fine screen cylinder; 34, fine screen groove; 35, second rack; 36, second trapezoidal guide block; 37, differential spring; 38, coarse screen cylinder; 39, coarse 40, the first rack; 41, the first trapezoidal guide block; 42, the third gear; 43, the electric drive module; 44, the third fixed base; 45, the feeding pipe; 46, the fixed bracket; 47, first base shell; 48, second shaft hole; 49, third shaft hole; 50, first shaft hole; 51, gear barrel; 52, second bevel gear; 53, second output shaft; 54, first Bevel gear; 55, first output shaft; 56, first gear; 57, differential input shaft; 58, hopper.

Detailed ways

The accompanying drawings are schematic diagrams of the implementation of the present invention, so as to facilitate the understanding of the operation principle of the structure. The specific product structure and proportions can be determined according to the use environment and conventional techniques.

As shown in Figures 1 and 2, it includes a blanking ring cylinder mechanism 1, a transmission mechanism 8, a rotating cylinder 25, a gear ring 26, a rotating positioning ring 27, a first connecting plate 28, a second connecting plate 29, and a first rotating ring. Block 30, second rotating ring block 31, rotating round block 32, fine screen drum 33, second rack 35, coarse screen drum 38, first rack 40, third gear 42, electric drive module 43, third fixed The base 44, the feeding tube 45, and the fixing bracket 46. As shown in Figures 1 and 2, the feeding ring cylinder mechanism 1 with the transmission mechanism 8 installed inside is fixedly installed on the fixing bracket 46; as shown in Figures 2 and 3, The rotating cylinder 25 with the rotating positioning ring 27 fixedly installed on the outer cylindrical surface of the lower end is installed on the upper end of the feeding ring cylinder mechanism 1; as shown in Figure 3, the gear ring 26 is fixedly installed on the upper end of the rotating cylinder 25; as shown in Figures 3 and 4 , two first connecting plates 28 are evenly installed on the inner cylindrical surface of the upper end of the rotating cylinder 25 along the circumferential direction, and the first rotating ring block 30, the second rotating ring block 31 and the rotating circle block 32, which are nested with each other, pass through two The second connecting plates 29 distributed symmetrically and respectively connected with the two first connecting plates 28 are installed concentrically at the lower end inside the rotating drum 25 .

As shown in Figures 2 and 5, a fine screen with a number of fine screen grooves 34 evenly distributed along the circumferential direction on the outer cylindrical surface is embedded in the annular gap between the rotating circular block 32 at the central position and the second rotating ring block 31. Cylinder 33; the lower end of the fine screen cylinder 33 is equipped with a second rack 35 that cooperates with the transmission mechanism 8; as shown in Figures 2 and 6, the annular gap between the second rotating ring block 31 and the first rotating ring block 30 is embedded A coarse sieve drum 38 with a number of coarse sieve grooves 39 evenly distributed along the circumference on the outer cylindrical surface is installed; the lower end of the coarse sieve drum 38 is installed with a first rack 40 that cooperates with the transmission mechanism 8; as shown in Figures 1 and 2, A third gear 42 that meshes with the gear ring 26 is mounted on the output shaft of the electric drive module 43 mounted on the unloading ring barrel mechanism 1 through the third fixed base 44 .

As shown in Figures 15 and 16, the above-mentioned blanking ring cylinder mechanism 1 includes an outer stepped cylinder 2, an inner stepped cylinder 4, and a base circular plate 5. As shown in Figure 16, the inner cylindrical surface of the upper end is provided with a ring groove 3 in the circumferential direction. The outer stepped cylinder 2 is sheathed with an inner stepped cylinder 4, the outer stepped cylinder 2 and the inner stepped cylinder 4 are fixedly connected by a number of symmetrically distributed connecting blocks 7, and the base plate 5 with the blanking hole 6 on the central plate surface is fixed and installed. Inside the inner stepped barrel 4; as shown in FIG. 2, the rotary positioning ring 27 rotates and slides in the ring groove 3; as shown in FIG. 2, the annular space between the outer stepped barrel 2 and the inner stepped barrel 4 corresponds to the rotating barrel 25 The annular space between the first rotating ring block 30 ; the feeding hole 6 on the base circular plate 5 is connected to the through hole in the center of the upper rotating circular block 32 through the feeding pipe 45 .

As shown in Figures 7 and 8, the above-mentioned transmission mechanism 8 includes a second base housing 9, a differential mechanism 13, a second gear 14, a fixed block 15, a limit block 18, a limit spring 19, a limit wheel 20, Lock motor 22, wherein as shown in Figure 2, the second base shell 9 is fixedly installed on the base circular plate 5; As shown in Figure 9, the differential mechanism 13 is installed in the second base shell 9 through the second fixed base 24 8,9, an output shaft of the differential mechanism 13 is installed with the second gear 14 meshing with the first rack 40, and the other output shaft is coaxially installed with a limit wheel 20 and with the second The second gear 14 meshed by the rack 35; as shown in Figures 12 and 13, the fixed block 15 fixedly installed on the second base shell 9 has a circular groove 16, and the circular groove 16 is in clearance fit with the limit wheel 20; As shown in 8, 12, and 14, the limit block 18 is slidably installed in the second limit groove 17 located on the inner wall of the circular groove 16, and the limit block 18 has two inclined planes that intersect up and down. The first limit groove 21 on the cylindrical surface is matched; as shown in Figs. The differential input shaft 57 is connected; as shown in FIG. 12 , the limit spring 19 is located in the second limit groove 17 to play a reset function on the movement of the limit block 18 .

As shown in FIGS. 2 and 3 , the upper end surface of the above-mentioned rotating circular block 32 , the upper end surface of the first rotating ring block 30 and the upper end surface of the second rotating ring block 31 are located in the same horizontal plane, so as to ensure that the first rotating ring block 30 and the second rotating ring block 31 are in the same horizontal plane. The second rotating ring block 31 will not retain the powder coating, so that the powder coating that is screened out all moves to the rotating drum 25 and falls into the packaging bag through the unloading ring drum mechanism 1 .

As shown in FIG. 2 , in the initial state, the bottom surface of the fine sieve groove 34 on the fine sieve drum 33, the upper end surface of the coarse sieve drum 38 and the upper end surface of the rotating circular block 32 are located in the same horizontal plane to ensure that they are located in the fine sieve drum. The smaller particles in the powder paint in 33 can all be screened out from the fine screen groove 34, and the powder paint screened out from the fine screen groove 34 can be moved to the rotating drum 25 without being blocked by the coarse screen groove 39. It falls into the packaging bag through the unloading ring mechanism 1.

As shown in FIG. 2 , when the above-mentioned coarse screen drum 38 moves up to the limit position along the annular gap between the first rotating ring block 30 and the second rotating ring block 31, the bottom surface of the coarse screen groove 39 on the coarse screen drum 38 , The upper end face of the fine sieve cylinder 33 and the upper end face of the rotating block 32 are located in the same horizontal plane, so as to ensure that the upper end face of the fine sieve cylinder 33 will not block the powder coating, and the powder coating from the fine sieve cylinder 33 will move completely to the rough surface. At the sieve drum 38; the smaller particles in the powder coating located in the coarse sieve drum 38 can all be screened out through the coarse sieve groove 39 without being blocked by the bottom surface of the coarse sieve groove 39.

As shown in FIGS. 10 and 11 , two opposite side walls of the second base shell 9 are respectively provided with vertical trapezoidal guide grooves 10 , and one side of the second base shell 9 is not provided with the trapezoidal guide groove 10 A fourth shaft hole 11 and a fifth shaft hole 12 are opened on the wall; as shown in FIGS. 6 and 8 , a first trapezoidal guide block 41 is installed on the lower end side of the first rack 40 Slide in the corresponding trapezoidal guide groove 10 on the inner wall of the second base shell 9; as shown in Figures 5 and 9, a second trapezoidal guide block 36 is installed on the lower end side of the second rack 35, and the second trapezoidal guide block 36 slides In another trapezoidal guide groove 10 on the inner wall of the second base housing 9 , it plays a guiding role for the movement of the first rack 40 and the second rack 35 .

As shown in FIG. 9 , a differential spring 37 is installed on the lower end of the second gear 14 , and the lower end of the differential spring 37 is connected to the inner bottom of the second base housing 9 ; the differential spring 37 is always in a compressed state.

As shown in FIG. 2 , there is an annular distance between the first rotating ring block 30 and the inner cylindrical surface of the rotating drum 25 to ensure that the powder coating screened by the coarse sieve drum 38 or the fine sieve drum 33 can pass through the first rotating ring block. 30 and the inner cylindrical surface of the rotating cylinder 25 have an annular distance, and then fall into the packaging bag through the unloading ring cylinder mechanism 1.

As shown in FIG. 22 , the upper end of the above-mentioned connecting block 7 is a tip formed by two intersecting inclined surfaces. The connecting block 7 of this structure will not retain part of the powder coating, so as to ensure that the first rotating ring block 30 and the inner cylinder of the rotating drum 25 are separated from each other. The powder coating falling with the annular spacing between the faces all falls into the packing tape.

As shown in FIGS. 17 and 18 , the differential mechanism 13 includes a first base housing 47 , a first shaft hole 50 , a gear barrel 51 , a second bevel gear 52 , a second output shaft 53 , a first bevel gear 54 , a An output shaft 55, a first gear 56, and a differential input shaft 57, wherein as shown in FIG. 20, two opposite sides of the first base housing 47 are provided with a second shaft hole 48 and a third shaft with concentric axes There is a first shaft hole 50 on the side with the third shaft hole; as shown in Figs. , one end of the second output shaft 53 protrudes from the third shaft hole, the second output shaft 53 and the third shaft hole are the bearing fit, the second output shaft 53 and the gear barrel 51 are the bearing fit; the second output shaft 53 A second bevel gear 52 is fixedly installed at one end of the upper gear barrel 51; the two second bevel gears 52 are respectively uniformly installed on the inner cylindrical surface of the gear barrel 51 along the circumferential direction through the corresponding shafts matched with their bearings, And the two second bevel gears 52 mesh with the first bevel gear 54 on the second output shaft 53; the end of the first output shaft 55 that is in the first base housing 47, which is matched with the bearing of the second shaft hole 48, is fixedly mounted thereon. The first bevel gear 54, and the first bevel gear 54 meshes with the two second bevel gears 52; as shown in FIG. 20, the central axes of the first shaft hole 50 and the second shaft hole 48 coincide; As shown, a first gear 56 is fixedly mounted on one end of the differential input shaft 57 that is bearing in the first shaft hole 50 and located in the first base housing 47 , and the first gear 56 is engaged with the gear barrel 51 .

As shown in FIGS. 8 and 23 , one end of the second output shaft 53 on which the second gear 14 is installed extends out of the second base housing 9 through the fourth shaft hole 11 , and the limit wheel 20 is installed on the second output shaft 53 On one end of the outer side of the second base shell 9, the second gear 14 and the second output shaft 53 are keyed, and the limit wheel 20 and the second output shaft 53 are keyed; the differential input shaft 57 passes through The fifth shaft hole 12 is connected with the output shaft of the self-locking motor 22 .

The self-locking motor 22 in the present invention is connected to the remote control system.

The electric drive module 43 in the present invention is in the prior art and is composed of a reducer and a motor. The output shaft of the motor is connected to the input shaft of the reducer; the third gear 42 is installed on the output shaft of the reducer.

In the present invention, the annular space between the outer stepped cylinder 2 and the inner stepped cylinder 4 corresponds to the annular space between the rotating cylinder 25 and the first rotating ring block 30 , which is beneficial to the distance between the rotating cylinder 25 and the first rotating ring block 30 . The powder coating leaked from the annular interval directly falls between the outer stepped barrel 2 and the inner stepped barrel 4 and is packed into the packaging bag located under the outer stepped barrel 2 and the inner stepped barrel 4 .

The differential gear mechanism 13 in the present invention has the same working principle as the differential gear in the automobile. The first output shaft 55 , the second output shaft 53 and the differential input shaft 57 in the differential gear mechanism 13 are the same as The two output half shafts correspond to the drive input shafts.

The working flow of the present invention: in the initial state, the first trapezoidal guide block 41 is located at the bottom of the corresponding trapezoidal guide groove 10, the second trapezoidal guide block 36 is located at the top of the corresponding trapezoidal guide groove 10, and the first trapezoidal guide block 41 is connected to the corresponding trapezoidal guide groove 10. The distance from the top of the corresponding trapezoidal guide groove 10 is equal to the distance between the second trapezoidal guide block 36 and the bottom of the corresponding trapezoidal guide groove 10. The end of the limit block 18 with the inclined surface is located in the first limit groove 21 on the limit wheel 20, The through hole in the center of the rotating round block 32 is blocked by a plug to prevent the powder coating from leaking out of the through hole, and the spring of the limit block 18 is in a pre-compressed state.

The prior art conveying and grinding device is used for the grinding of bulk powder coatings, and the ground powder coating particles are conveyed into the hopper 58; and the hopper 58 in the present invention can be fixedly installed on the existing conveying and grinding device.

When the powder coating needs to be screened and packaged, the power is turned on to make the conveying and grinding device start grinding. After the power is turned on, the electric drive module 43 drives the third gear 42 to rotate, and the third gear 42 drives the rotating drum 25 through the gear ring 26 to rotate along the outside. The ring groove 3 on the stepped cylinder 2 rotates, and the rotating cylinder 25 drives the first rotating ring block 30 , the second rotating ring block 31 and the rotating round block 32 to rotate synchronously through the first connecting plate 28 and the second connecting plate 29 .

Then, the powder coating is made to fall from the hopper 58 to the rotating block 32 which is located in the fine sieve drum 33, which is continuously rotating. Under the action of centrifugal force, the powder coating falling on the rotating block 32 moves around the rotating block 32 and receives The fine sieve cylinder 33 is blocked, and the fine sieve groove 34 on the fine sieve cylinder 33 leaks out the powder coating smaller than its width size; under the continuous action of centrifugal force, the powder coating leaking from the fine sieve cylinder 33 leaks from the first rotating ring The annular gap between the block 30 and the rotating drum 25 falls into the space between the inner stepped drum 4 and the outer stepped drum 2, and falls into the lower end of the outer stepped drum 2 from the space between the inner stepped drum 4 and the outer stepped drum 2. Continuously add powder coating to the fine sieve cylinder 33, under the action of centrifugal force, the finer powder coating leaks through the fine sieve groove 34 on the fine sieve cylinder 33 and passes through the first rotating ring block 30 and the rotating cylinder 25. The annular gap therebetween and the space between the inner stepped barrel 4 and the outer stepped barrel 2 fall into the packaging bag sheathed at the lower end of the outer stepped barrel 2 .

When the fine-grained powder coatings are basically screened, and the coarse powder coatings that cannot leak out in the fine sieve cylinder 33 accumulate to a certain amount, the self-locking motor 22 is controlled by the remote control system to start to rotate, and the self-locking motor 22 passes through the differential. The differential input shaft 57 on the mechanism 13 drives the first gear 56 to rotate; because the limit wheel 20 is restricted by the limit block 18, the second gear 14 installed on the second output shaft 53 does not rotate, and the self-locking motor 22 outputs The power is transmitted to the second gear 14 meshing with the first rack 40 through the first gear 56, the gear barrel 51, the first bevel gear 54, the corresponding second bevel gear 52 and the first output shaft 55; the second gear 14 Drive the first rack 40 to move upward along the corresponding trapezoidal guide groove 10; the first rack 40 drives the coarse screen cylinder 38 to move upward synchronously; when the first trapezoidal guide block 41 moves upward along the corresponding trapezoidal guide groove 10 to the limit position, the first A rack 40 and a coarse screen drum 38 stop moving under the restriction of the trapezoidal guide groove 10; the full power output from the self-locking motor 22 sequentially passes through the first gear 56, the gear barrel 51, the first bevel gear 54, the corresponding second The bevel gear 52 and the second output shaft 53 are all transmitted to the second gear 14 meshing with the second rack 35; the second gear 14 drives the limit wheel 20 through the second output shaft 53 to act on the upper slope of the limit block 18 so that The limit block 18 shrinks inward along the second limit groove 17, the limit spring 19 is compressed, the limit block 18 releases the rotation restriction on the limit wheel 20, and the second gear 14 drives the second rack 35 along the corresponding trapezoidal guide. The groove 10 moves downward, the differential spring 37 is compressed, and the second rack 35 drives the fine screen cylinder 33 to move downward synchronously; The lower powder coating loses the blocking of the fine screen cylinder 33, and moves to the raised coarse screen cylinder 38 under the action of centrifugal force; when the fine screen cylinder 33 moves down to the limit, the limit block 18 just enters the limit wheel 20 again. In the first limit slot 21 above, the limit block 18 re-limits the limit wheel 20; then the self-locking motor 22 is controlled to stop running, the motor shaft is self-locked, and the gear in the differential mechanism 13 no longer rotates, Finally, neither the first rack 40 nor the second rack 35 will move any more, and the remaining powder coating in the fine sieve cylinder 33 will all move to the coarse sieve cylinder 38 under the action of centrifugal force, and a part of the remaining powder coating will be The coarse screen groove 39 on the coarse screen drum 38 moves toward the rotary drum 25 and falls from the annular gap between the first rotary ring block 30 and the rotary drum 25 into the space between the inner stepped drum 4 and the outer stepped drum 2, and then from the annular gap between the first rotary ring block 30 and the rotary drum 25. The space between the inner stepped barrel 4 and the outer stepped barrel 2 falls into the empty packaging bag sheathed at the lower end of the outer stepped barrel 2 .

When part of the powder coating in the coarse sieve drum 38 that can pass through the coarse sieve groove 39 is completely sieved out, the remaining powder coating has the largest particles; then the power is turned off to stop the operation of the electric drive module 43, and the The cylinder 25, the first rotating ring block 30, the second rotating ring block 31 and the rotating circle block 32 stop rotating; remove the plug blocking the through hole of the rotating circle block 32, and remove the remaining powder coating in the coarse screen cylinder 38 from the rotating circle. The through hole on the block 32 falls into the new packaging belt sleeved on the lower end of the outer stepped cylinder 2 through the feeding pipe 45 and the feeding hole 6 on the base circular plate 5 .

When the powder coating left after sieving in the coarse sieve drum 38 is cleaned up, the control system controls the self-locking motor 22 to reverse, and the self-locking motor 22 drives the first gear 56 to reverse through the differential input shaft 57; The position wheel 20 is restricted by the limit block 18, and the rotation of the second gear 14 coaxial with the limit wheel 20 is restricted, while the second gear 14 on the first output shaft 55 is not subject to any restriction at this time; the first gear 56 is driven to reverse the second gear 14 on the first output shaft 55 through the toothed barrel 51, the first bevel gear 54 and the second bevel gear 52, and the second gear 14 drives the coarse screen drum 38 downward through the first rack 40 Synchronous movement; when the first rack 40 drives the coarse screen cylinder 38 to move down to the limit position, the trapezoidal guide groove 10 matched with the first trapezoidal guide block 41 on the first rack 40 is opposite to the first output shaft 55 The rotation of the second gear 14 forms a new limit; at this time, the first gear 56 that continues to reverse under the drive of the reverse self-locking motor 22 is driven by the tooth barrel 51, the first bevel gear 54 and the second bevel gear 52. The second gear 14 installed on the second output shaft 53 is reversed, the limit wheel 20 overcomes the limitation of the limit block 18 and rotates, and the second gear 14 on the second output shaft 53 drives the fine screen through the second rack 35 The cylinder 33 moves upward synchronously, and the differential spring 37 releases energy; when the second rack 35 drives the fine screen cylinder 33 to move upward synchronously to the initial position, the differential spring 37 returns to its original state, and the limit block 18 re-enters the limit wheel 20 A new limit is formed in the first limit groove 21 of the limit wheel 20; then the self-locking motor 22 is controlled by the control system to stop running, and the screening of the powder coating ends.

To sum up, the beneficial effects of the present invention: in the present invention, the powder coating packaging machine can screen the powder coating from the hopper 58 by the fine sieve cylinder 33 and the coarse sieve cylinder 38 which are alternately raised and lowered, and sieve particles of different sizes. The powder coatings mixed with the large and small particles from the hopper 58 are screened and classified by coarse and fine, and then the powder coatings of different sizes are put into different packaging bags, thereby improving the screening efficiency of the coatings; traditional The equipment for screening powder coatings needs to realize the alternate lifting between the fine screen drum 33 and the coarse screen drum 38 through the alternate work of two motors, while the powder coating packaging machine in the present invention only needs to pass a self-locking motor 22. The first rack 40 and the second rack 35 can drive the coarse screen cylinder 38 and the fine screen cylinder 33 to move up and down alternately, so as to realize automatic screening of powder coatings, thereby reducing the production cost of the equipment and simplifying the process. The motor control system makes the device easier to operate.

Claims (10)

1. a powder coating packaging machine for screening particles is characterized in that: it comprises a blanking ring cylinder mechanism, a transmission mechanism, a rotary cylinder, a toothed ring, a rotary positioning ring, the first connecting plate, the second connecting plate, the first rotating Ring block, second rotating ring block, rotating round block, fine screen drum, second rack, coarse screen drum, first rack, third gear, electric drive module, third fixed base, feeding pipe, fixed bracket , in which the feeding ring cylinder mechanism with the transmission mechanism installed inside is fixedly installed on the fixed bracket; the rotating cylinder with the rotating positioning ring fixedly installed on the outer cylindrical surface of the lower end is installed on the upper end of the feeding ring cylinder mechanism; the gear ring is fixed on the rotating cylinder Upper end; two first connecting plates are evenly installed on the inner cylindrical surface of the upper end of the rotating drum along the circumferential direction, and the first rotating ring block, the second rotating ring block and the rotating circle block which are nested with each other are distributed symmetrically through two and respectively. The second connecting plate connected with the two first connecting plates is concentrically installed at the lower end inside the rotating drum; A fine sieve cylinder with a number of fine sieve grooves evenly distributed along the circumferential direction on the outer cylindrical surface is embedded in the annular gap between the rotating circular block at the center position and the second rotating ring block; the lower end of the fine sieve cylinder is installed with a transmission mechanism The second gear rack that matches; a coarse screen cylinder with a number of coarse screen grooves evenly distributed along the circumferential direction on the outer cylindrical surface is embedded in the annular gap between the second rotating ring block and the first rotating ring block; the lower end of the coarse screen cylinder A first rack gear matched with the transmission mechanism is installed; a third gear meshing with the gear ring is installed on the output shaft of the electric drive module installed on the unloading ring barrel mechanism through the third fixed base; The above-mentioned blanking ring tube mechanism includes an outer stepped tube, an inner stepped tube, and a base circular plate, wherein the outer stepped tube with a circumferential groove on the inner cylindrical surface of the upper end is sleeved with an inner stepped tube, and between the outer stepped tube and the inner stepped tube. Fixed by several symmetrically distributed connecting blocks, the base circular plate with the blanking hole on the center plate surface is fixedly installed in the inner stepped cylinder; the rotary positioning ring rotates and slides in the ring groove; the gap between the outer stepped cylinder and the inner stepped cylinder The annular space corresponds to the annular interval between the rotating drum and the first rotating ring block; the feeding hole on the base circular plate is connected with the through hole at the center of the upper rotating circular block through the feeding pipe; The above-mentioned transmission mechanism includes a second base shell, a differential mechanism, a second gear, a fixed block, a limit block, a limit spring, a limit wheel, and a self-locking motor, wherein the second base shell is fixedly installed on the base circular plate, The differential mechanism is installed in the second base shell through the second fixed base; one output shaft of the differential mechanism is installed with a second gear meshing with the first rack, and the other output shaft is coaxially installed with a limit wheel and the second gear meshing with the second rack; the fixed block fixedly installed on the second base shell has a circular groove, and the circular groove is in clearance fit with the limit wheel; the limit block is slidably installed on the first In the two limit slots, one end of the limit block with two inclined planes intersecting up and down is matched with the first limit slot on the outer cylindrical surface of the limit wheel; the self-locking motor is installed on the second base shell through the first fixed base , and its output shaft is connected with the differential input shaft in the differential mechanism; the limit spring is located in the second limit groove to play a reset function on the movement of the limit block. 2. A powder coating packaging machine for screening particles according to claim 1, characterized in that: the upper end surface of the above-mentioned rotating circular block, the upper end surface of the first rotating ring block and the upper end surface of the second rotating ring block are located at the same in the horizontal plane. 3. A powder coating packaging machine for screening particles according to claim 1, characterized in that: in an initial state, the bottom surface of the fine sieve groove on the above-mentioned fine sieve drum, the upper end face of the coarse sieve drum and the rotating block The upper end faces of the s are in the same horizontal plane. 4. A powder coating packaging machine for screening particles according to claim 1, characterized in that: when the coarse sieve cylinder moves up to the limit position along the annular gap between the first rotating ring block and the second rotating ring block At the same time, the bottom surface of the coarse sieve groove on the coarse sieve drum, the upper end surface of the fine sieve drum and the upper end surface of the rotating block are located in the same horizontal plane. 5. The powder coating packaging machine for screening particles according to claim 1, wherein the two opposite side walls of the second base shell are respectively provided with vertical trapezoidal guide grooves, and the second base A fourth shaft hole and a fifth shaft hole are formed on one side wall of the casing without the trapezoidal guide groove. 6. A powder coating packaging machine for screening particles according to claim 1 or 5, characterized in that: a first trapezoidal guide block is installed on the lower end side of the first rack, and the first trapezoidal guide block slides on the first In the corresponding trapezoidal guide grooves on the inner wall of the second base shell; a second trapezoidal guide block is installed on the lower end side of the second rack, and the second trapezoidal guide block slides in another trapezoidal guide groove on the inner wall of the second base shell. 7. A powder coating packaging machine for screening particles according to claim 1, characterized in that: the lower end of the second gear is provided with a differential spring, and the lower end of the differential spring is connected with the inner bottom of the second base shell; The speed spring is always compressed. 8 . The powder coating packaging machine for screening particles according to claim 1 , characterized in that there is an annular distance between the first rotating ring block and the inner cylindrical surface of the rotating drum. 9 . 9 . The powder coating packaging machine for screening particles according to claim 1 , wherein the upper end of the connecting block is a tip formed by two intersecting inclined surfaces. 10 . 10. A powder coating packaging machine for screening particles according to claim 1 or 5, characterized in that: the differential mechanism comprises a first base shell, a first shaft hole, a gear barrel, a second bevel gear, a first Two output shafts, a first bevel gear, a first output shaft, a first gear, and a differential input shaft, wherein two opposite sides of the first base shell are provided with a second shaft hole and a third shaft hole with a concentric axis , the side with the third shaft hole has a first shaft hole; the tooth barrel whose outer cylindrical surface is a tooth surface is installed in the first base shell through the second output shaft, and one end of the second output shaft extends out of the third shaft hole, There is a bearing fit between the second output shaft and the third shaft hole, and a bearing fit between the second output shaft and the gear barrel; a second bevel gear is fixedly installed on one end of the second output shaft in the gear barrel; The two bevel gears are respectively uniformly installed on the inner cylindrical surface of the gear barrel along the circumferential direction through the corresponding shafts matched with the bearings, and the two second bevel gears mesh with the first bevel gear on the second output shaft; A first bevel gear is fixedly mounted on one end of the first output shaft that is matched with the shaft hole bearing and is located in the first base shell, and the first bevel gear meshes with the two second bevel gears; the first shaft hole and the second shaft The central axes of the holes are coincident; a first gear is fixedly installed on the end of the differential input shaft that is matched with the first shaft hole bearing and is located in the first base shell, and the first gear is meshed with the gear barrel; One end of the second output shaft on which the second gear is installed passes through the fourth shaft hole and protrudes out of the outer side of the second base shell, the limit wheel is installed on the end of the second output shaft which is located on the outer side of the second base shell, and the second gear is connected to the outer side of the second base shell. The second output shaft is keyed, the limit wheel and the second output shaft are keyed; the differential input shaft is connected to the output shaft of the self-locking motor through the fifth shaft hole.

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