Screening device for putty powder processing

Abstract

The invention relates to the field of putty powder production, and discloses a screening device for putty powder processing, which comprises a tank body, a feed hopper arranged at the top end of the tank body in a communicating manner and a storage hopper arranged in the tank body, and a screen is arranged at the bottom of the tank body in the horizontal direction. A stirring shaft is rotatably arranged at the top of the tank body in the vertical direction, a screen plate movably attached to the top of the screen is arranged at the bottom of the stirring shaft, a first discharging opening is formed in the bottom of the storage hopper, and the stirring shaft movably penetrates through the first discharging opening; a discharging mechanism used for controlling opening and closing of the first discharging opening is arranged in the tank body, and a grinding mechanism used for grinding putty powder is arranged in the tank body. The putty powder screening device has the effects that dissipation of putty powder in the screening process is reduced, and the safety risk is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of putty powder processing, in particular to a screening device used for putty powder processing. Background Art

[0002] Putty powder is a type of building decoration material, primarily composed of talcum powder and glue. Putty is used as a base material for wall repair and leveling, laying a good foundation for subsequent decoration (painting and wallpapering). The fineness of the putty powder is closely related to the smoothness of the wall surface.

[0003] Chinese patent publication number CN221772334U discloses a putty powder screening device, comprising: a storage barrel, a screening frame, a screen, a first push plate and a second push plate; a storage trough is provided on the first side of the storage barrel, the screening frame is movably arranged on the first side of the storage barrel, a screening trough is provided on the first side of the screening frame, the screen is connected to the inner side wall of the screening frame, a plurality of blanking holes are provided on the first side of the screen, the first push plate is slidably arranged in the screening trough, and the second push plate is slidably arranged in the screening trough; although this patent can crush the agglomerated putty powder by the first push plate and the second push plate, the screen is directly exposed. During the process of pouring putty powder and crushing and screening putty powder, the putty powder is easily dispersed in the air and easily inhaled by on-site operators, which poses certain safety risks. Summary of the Invention

[0004] The purpose of the present invention is to provide a screening device for putty powder processing, which has the effect of reducing the escape of putty powder during the screening process and reducing safety risks.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: it includes a tank body, a feeding hopper connected to the top of the tank body, and a storage hopper arranged in the tank body, the bottom end of the tank body is connected to a discharge pipe, the bottom of the tank body is provided with a screen in the horizontal direction, the top of the tank body is provided with a stirring shaft that rotates in the vertical direction, the top of the tank body is provided with a driving motor for driving the stirring shaft to rotate, the bottom of the stirring shaft is provided with a sieve plate that can be movably fitted to the top of the screen, a first discharge port is provided at the bottom of the storage hopper, the stirring shaft moves through the first discharge port, a discharge mechanism for controlling the opening and closing of the first discharge port is provided in the tank body, a grinding mechanism for grinding putty powder is provided in the tank body, and the grinding mechanism is located between the storage hopper and the screen.

[0006] By adopting the above technical solution, a tank body, a storage hopper, a screen, etc. are set. When the putty powder or bagged putty powder needs to be screened, the putty powder can be directly transported to the feed hopper through a pipeline, or the bag opening of the bagged putty powder can be clamped on the top of the feed hopper, and then the putty powder is poured into the storage hopper in the tank body, and then the discharge mechanism is opened, and the putty powder falls from the first discharge port into the grinding mechanism, and the agglomerated putty powder in the putty powder can be ground. The ground putty powder falls into the screen below, and the driving motor drives the stirring shaft and the screen plate to rotate, and the screen plate pushes the putty powder on the screen through the screen. Finally, the sieved putty powder is directly introduced into the packaging or mixing device from the discharge pipe at the bottom of the tank body; by setting the storage hopper, etc. On the one hand, the putty powder that is intermittently fed can be temporarily stored in the storage hopper and then gradually ground and screened. On the other hand, after the putty powder enters the wider storage hopper from the relatively narrow feed hopper, it will escape between the storage hopper and the tank body, and then settle down through the obstruction of the tank body, thereby greatly reducing the escape of putty powder into the outside air, avoiding workers from inhaling it, and reducing the safety risk of operation; by setting up a feeding mechanism and a grinding mechanism, the feeding speed of the putty powder in the storage hopper can be coordinated with the grinding speed of the putty powder by the grinding mechanism, avoiding the accumulation of a large amount of putty powder in the grinding mechanism to affect the normal grinding efficiency; by setting up a sieve plate, the putty powder on the screen can be pushed to move, thereby accelerating the rate at which the ground putty powder passes through the screen and accelerating the screening process of the putty powder.

[0007] The present invention is further configured as follows: the unloading mechanism includes a first control plate arranged at the first unloading port and several fan-shaped second unloading ports evenly opened on the first control plate; the stirring shaft moves through the first control plate; and several fan-shaped second control plates corresponding to the second unloading ports are evenly arranged on the stirring shaft; the bottom of the second control plate can be movably fitted to the top of the first control plate.

[0008] By adopting the above technical solution, a first control plate and a second control plate are set. When the stirring shaft rotates, the second control plate pushes the putty powder in the storage hopper to be discharged through the second discharge port. On the one hand, the discharge speed of the putty powder can be controlled by the size and number of the second discharge ports, so that the discharge speed of the putty powder can be coordinated with the grinding speed of the grinding mechanism. On the other hand, the second control plate can push the putty powder to move during rotation, so that the putty powder can be discharged smoothly through the second discharge port, thereby avoiding the putty powder from piling up in the storage hopper and failing to be discharged smoothly through the second discharge port.

[0009] The present invention is further configured as follows: the grinding mechanism includes a grinding bucket arranged in the tank body and a first grinding block arranged on the stirring shaft to cooperate with the grinding bucket, the bottom of the first grinding block can be movably fitted to the inner wall of the grinding bucket, the bottom of the grinding bucket is provided with a spiral thread groove, and the horizontal plane of the top of the grinding bucket is higher than the horizontal plane of the top of the first grinding block.

[0010] The present invention is further configured as follows: a bucket-shaped lower hopper is provided in the tank body, the cross-sectional area of ​​the top of the lower hopper is smaller than the cross-sectional area of ​​the bottom of the lower hopper, the stirring shaft moves through the lower hopper, the central axis of the lower hopper coincides with the central axis of the stirring shaft, and the cross-sectional area of ​​the bottom of the lower hopper is larger than the cross-sectional area of ​​the top of the first grinding block.

[0011] By adopting the above technical solution, since the top of the grinding hopper and the bottom of the lower hopper are higher than the first grinding block, and the cross-sectional area of ​​the bottom of the lower hopper is larger than that of the first grinding block, the putty powder falling from the second discharge port falls on the top of the grinding hopper instead of on the first grinding block. Since the first grinding block rotates with the stirring shaft, the bottom of the first grinding block has a spiral thread groove, and the putty powder on the top of the grinding hopper will enter from the thread groove between the first grinding block and the grinding hopper as the first grinding block rotates to be ground (it should be noted that the thread groove provided at the bottom of the first grinding block can allow powdered putty powder to pass through, but will extrude and grind the lump-shaped putty powder after agglomeration), and then the ground putty powder falls onto the screen below through the bottom of the first grinding block; by providing the first grinding block, the spiral groove and the grinding hopper, the first grinding block rotating with the stirring shaft will grind the putty powder, so that the agglomerated putty powder is dispersed and then falls onto the screen, thereby The sieve of the first grinding block is used for grinding the putty powder, and the sieve of the first grinding block is used for grinding the putty powder.

[0012] The present invention is further configured as follows: a discharge barrel is rotatably provided at the bottom of the first discharge port, a fixed block fixedly connected to the inner wall of the discharge barrel is symmetrically provided on the stirring shaft, and a set distance is provided between the bottom end of the discharge barrel and the top end of the discharge hopper.

[0013] By adopting the above technical solution, a discharge barrel is provided, so that after the putty powder is discharged from the second discharge port, it can be concentratedly dropped to the top of the lower hopper through the limit of the discharge barrel, and then slide down along the top of the lower hopper for dispersion, thereby preventing the putty powder from escaping everywhere in the tank body during the process of falling from the second discharge port, resulting in uneven distribution of the putty powder on the lower hopper, affecting the grinding efficiency of the putty powder by the first grinding block; at the same time, the discharge barrel rotates with the stirring shaft through the fixed block, and can stir the putty powder dropped in the discharge barrel, thereby dispersing the putty powder dropped from the second discharge port, so that the putty powder falls evenly on the top of the lower hopper, and then is further dispersed in the process of sliding downward along the lower hopper, so that the putty powder can be evenly dispersed on the top of the grinding hopper for grinding, avoiding accumulation in some positions, and improving the grinding efficiency.

[0014] The present invention is further configured as follows: a return spring is symmetrically arranged in the horizontal direction in the tank body, a knocking rod is arranged at the end of the return spring in the vertical direction, a first limiting rod is horizontally arranged on the knocking rod, one end of the first limiting rod moves through the adjacent return spring and the tank body, and a first pushing block is arranged at the other end of the first limiting rod, and a protrusion that can push the first pushing block away from the stirring shaft is symmetrically arranged on the outer wall of the discharge barrel. When the two ends of the knocking rod respectively contact the storage hopper and the discharge hopper, the return spring is in a compressed state.

[0015] By adopting the above technical solution, a knocking rod is set, and during the rotation of the stirring shaft, the discharge barrel is driven to rotate through the fixed block, and then the two symmetrically arranged protrusions are driven to rotate. When the two protrusions rotate to one side and abut against the first pushing blocks on both sides, the protrusion rotates in the direction close to the adjacent first pushing block, which can push the first pushing block to move in the direction away from the stirring shaft, thereby pushing the first limiting rod and the knocking rod to push the return spring to move in the direction away from the stirring shaft. In this process, the return spring is compressed, and then the protrusion rotates until the end of the protrusion abuts against the first pushing block, and the protrusion rotates in the direction away from the adjacent first pushing block. Since the return spring is in a compressed state, the knocking rod and the first pushing block are pushed under the action of the elastic force of the return spring. Move in the direction close to the stirring shaft until the two ends of the knocking rod respectively hit the storage hopper and the lower hopper. At this time, the reset spring is still in a compressed state. In the process of the knocking rod approaching until it hits the storage hopper and the lower hopper, a knocking effect is formed on the storage hopper and the lower hopper, which can move the putty powder adsorbed on the inner wall of the storage hopper and the outer wall of the lower hopper; therefore, by setting a knocking rod, a reset spring, etc., the protrusion is driven to rotate during the rotation of the lower barrel, and then the first push block and the knocking rod are pushed to move back and forth intermittently. The knocking rod repeatedly knocks the outer walls of the storage hopper and the lower hopper during the reciprocating movement, thereby accelerating the falling of the putty powder on the lower hopper, and preventing the putty powder from being adsorbed on the lower hopper and the storage hopper, thereby enhancing the overall fluidity of the putty powder.

[0016] The present invention is further configured as follows: a first guide rod and a second guide rod are respectively provided in the horizontal direction on the side of the knocking rod away from the stirring shaft, the inner wall of the tank body is symmetrically provided with a first guide cylinder that cooperates with the first guide rod, and the end of the first guide rod is movably fitted to the inner wall of the first guide cylinder, and the inner wall of the tank body is symmetrically provided with a second guide cylinder that cooperates with the second guide rod, and the end of the second guide rod is movably fitted to the inner wall of the second guide cylinder, and there is a set distance between the ends of the first guide rod and the second guide rod and the inner wall of the tank body, and the first guide cylinder is located directly below the adjacent second guide cylinder.

[0017] By adopting the above technical solution, a first guide cylinder and a second guide cylinder are set, and the ends of the first guide rod and the second guide rod are respectively engaged with the first guide cylinder and the second guide cylinder, which can form a support for the knocking rod, the first push block, etc. to prevent the return spring from twisting under the action of gravity, and can also further limit the moving direction of the knocking rod, the first push block, etc., thereby improving the stability of the knocking rod, etc. during movement.

[0018] The present invention is further configured as follows: a push rod is vertically provided at the end of the first guide rod, a long strip-shaped push hole is provided at the bottom of the first guide cylinder to match the push rod, the push rod movably passes through the push hole, the bottom of the push rod is provided with a second push block movably fitted to the inner wall of the grinding bucket, the grinding bucket is movably connected to the tank body, a plurality of connecting blocks are evenly provided on the top of the grinding bucket along the horizontal direction, a plurality of connecting holes are provided on the tank body corresponding to the connecting blocks one by one, the connecting block can movably fit the inner wall of the connecting hole, a plurality of blocking blocks for blocking the connecting hole are provided on the outer wall of the tank body, and the connecting A connecting rod is vertically arranged in the hole, and a connecting spring is vertically arranged between the connecting block and the connecting hole. The connecting rod movably passes through the connecting spring and the connecting block. A cylindrical second grinding block is provided at the bottom of the first grinding block, and a cylindrical grinding cylinder is provided at the bottom end of the grinding bucket. There is a set distance between the inner wall of the grinding cylinder and the second grinding block. When the top of the connecting block is attached to the top of the connecting hole, the first grinding block is movably attached to the inner wall of the grinding bucket, and the connecting spring is in a compressed state. When the protrusion pushes the first pushing block away from the stirring shaft, the second pushing block can push the grinding bucket to move downward.

[0019] By adopting the above technical solution, a second pushing block, a connecting block, etc. are set. In the process of the protrusion pushing the knocking rod to move in the direction away from the stirring shaft through the first pushing block, the knocking rod drives the first guide rod and the pushing rod to move along the pushing hole (in the horizontal direction). In this process, the second pushing block exerts a force on the inner wall of the lower hopper. Since the second pushing block and the grinding hopper are curved surfaces that fit each other, the force exerted by the second pushing block on the grinding hopper can be decomposed into horizontal and vertical forces. The horizontal force is offset by the reaction of the inner wall of the tank body, and the vertical force can push the grinding hopper to move in the vertical downward direction (it should be noted that the distance that the grinding hopper can descend is limited by the moving distance of the first pushing block. Therefore, the downward moving distance of the grinding hopper can be adjusted by the protrusion, so that the granular putty powder can fall into between the grinding hopper and the first grinding block, while avoiding a large amount of putty powder entering between the first grinding block and the grinding hopper due to excessive moving distance). The connecting spring is compressed, and then in the process of the knocking rod approaching the stirring shaft, the second pushing block is also driven to move in the direction close to the stirring shaft. The grinding bucket is raised to the connection block under the elastic action of the connecting spring and abuts against the connection hole; therefore, in the process of the protruding block pushing the first pushing block to move back and forth, the grinding bucket is driven to move up and down intermittently. During the descent of the grinding bucket, some relatively large agglomerated putty powder in the putty powder can enter between the grinding bucket and the first grinding block, and then the first grinding block is ground and crushed, thereby preventing some agglomerated putty powder from being unable to enter the bottom of the first grinding block for grinding, thereby ensuring the grinding effect of the grinding block on the putty powder; by providing the second grinding block and the grinding cylinder, a certain gap is provided between the inner wall of the grinding cylinder and the second grinding block, ensuring that the putty powder ground by the first grinding block falls smoothly onto the screen below, and can also prevent the agglomerated putty powder from passing through. Therefore, when the grinding bucket and the grinding cylinder move downward, if the agglomerated putty powder falls directly from the top of the grinding bucket to the bottom of the grinding bucket, it can also pass through the obstruction of the second grinding block and stay at the bottom of the grinding bucket. After being ground by the first grinding block, it can pass through the gap between the grinding cylinder and the second grinding block, thereby ensuring that the putty powder can be fully ground and improving the grinding and screening effect of the putty powder.

[0020] The present invention is further configured as follows: a pushing wheel is provided on the first pushing block for rotating in a vertical direction, and the protrusion can push the pushing wheel to move in a direction away from the stirring shaft.

[0021] By adopting the above technical solution and setting a pushing wheel, the sliding friction between the protrusion and the first pushing block is converted into rolling friction between the protrusion and the pushing wheel, thereby reducing the friction between the protrusion and the pushing wheel, reducing the wear that may be caused by the protrusion pushing the pushing wheel, and extending the service life of the equipment.

[0022] The present invention is further configured as follows: a first spherical knocking block is provided at the top end of the knocking rod, and a second spherical knocking block is provided at the bottom end of the knocking rod.

[0023] By adopting the above technical solution, a spherical first knocking block and a second knocking block are set. On the one hand, the curved surfaces of the first knocking block and the second knocking block respectively contact the storage hopper and the lower hopper, which can reduce the friction generated during the knocking process. On the other hand, the first knocking block and the second knocking block are in point contact with the storage hopper and the lower hopper, so that the force of the knocking rod on the storage hopper and the lower hopper is concentrated on one point, so that the vibration generated in the process of the first knocking block and the second knocking block knocking the storage hopper and the lower hopper is more obvious, and the vibration effect on the putty powder is more obvious.

[0024] The beneficial effects of the present invention are:

[0025] 1. By setting up a tank body, a storage hopper, a screen, etc., when it is necessary to screen the finished putty powder or the bagged putty powder, the finished putty powder can be directly transported to the feed hopper through a pipeline, or the bag opening of the bagged putty powder can be clamped on the top of the feed hopper, and then the putty powder is poured into the storage hopper in the tank body, and then the discharge mechanism is opened, and the putty powder falls from the first discharge port into the grinding mechanism, which can grind the agglomerated putty powder in the putty powder, and the ground putty powder falls into the screen below, and the driving motor drives the stirring shaft and the screen plate to rotate When the putty powder is fed intermittently, it can be temporarily stored in the storage hopper, and then gradually ground and screened. On the other hand, after the putty powder enters the wider storage hopper from the relatively narrow feed hopper, it will escape between the storage hopper and the tank body, and then settle down through the obstruction of the tank body, thereby greatly reducing the escape of putty powder into the outside air, avoiding workers from inhaling it, and reducing the safety risk of operation.

[0026] 2. By setting a knocking rod, a reset spring, etc., the convex block is driven to rotate during the rotation of the discharge barrel, thereby pushing the first push block and the knocking rod to move back and forth intermittently. The knocking rod repeatedly knocks on the outer walls of the storage hopper and the discharge hopper during the reciprocating movement, thereby accelerating the falling of the putty powder on the discharge hopper, and preventing the putty powder from being adsorbed on the discharge hopper and the storage hopper, thereby enhancing the overall fluidity of the putty powder.

[0027] 3. By setting a connecting block, a connecting spring, etc., when the convex block pushes the first pushing block to move back and forth, the grinding bucket is driven to move up and down intermittently. During the descending process of the grinding bucket, some relatively large agglomerated putty powder in the putty powder can enter between the grinding bucket and the first grinding block, and then the first grinding block is ground and crushed, thereby preventing some agglomerated putty powder from being unable to enter the bottom of the first grinding block for grinding, thereby ensuring the grinding effect of the grinding block on the putty powder; by setting the second grinding block and the grinding cylinder, there is a certain gap between the inner wall of the grinding cylinder and the second grinding block, ensuring that the putty powder ground by the first grinding block falls smoothly onto the screen below, and can also prevent the agglomerated putty powder from passing through. Therefore, when the grinding bucket and the grinding cylinder move downward, if the agglomerated putty powder falls directly from the top of the grinding bucket to the bottom of the grinding bucket, it can also pass through the obstruction of the second grinding block and stay at the bottom of the grinding bucket. After being ground by the first grinding block, it can pass through the gap between the grinding cylinder and the second grinding block, thereby ensuring that the putty powder can be fully ground and improving the grinding and screening effect of the putty powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 This is a structural schematic diagram of an embodiment of a screening device for putty powder processing according to the present invention;

[0030] Figure 2 It is a partial cross-sectional structural diagram of an embodiment of a screening device for putty powder processing according to the present invention;

[0031] Figure 3 yes Figure 2 A is an enlarged schematic diagram;

[0032] Figure 4 yes Figure 2 A magnified schematic diagram of B in the middle;

[0033] Figure 5 It is a partial cross-sectional structural diagram of an embodiment of a screening device for putty powder processing according to the present invention;

[0034] Figure 6 yes Figure 5 A magnified schematic diagram of middle C;

[0035] Figure 7 It is a partial cross-sectional structural diagram of an embodiment of a screening device for putty powder processing according to the present invention;

[0036] Figure 8 yes Figure 7 Enlarged schematic diagram of D in the middle.

[0037] In the figure, 1, tank body; 2, feed hopper; 3, storage hopper; 4, discharge pipe; 5, screen; 6, stirring shaft; 7, drive motor; 8, sieve plate; 9, first discharge port; 10, discharge mechanism; 10a, first control panel; 10b, second discharge port; 11, grinding mechanism; 11a, grinding hopper; 11b, first grinding block; 12, second control panel; 13, thread groove; 14, discharge hopper; 15, discharge barrel; 16, fixing block; 17, return spring; 18, knock Rod; 19, first limiting rod; 20, first pushing block; 21, protrusion; 22, first guide rod; 23, second guide rod; 24, first guide cylinder; 25, second guide cylinder; 26, pushing rod; 27, pushing hole; 28, second pushing block; 29, connecting block; 30, connecting hole; 31, stop block; 32, connecting rod; 33, connecting spring; 34, second grinding block; 35, grinding cylinder; 36, pushing wheel; 37, first knocking block; 38, second knocking block. DETAILED DESCRIPTION

[0038] The technical solutions of the present invention will be described clearly and completely below with reference to specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0039] The present invention provides a screening device for putty powder processing, such as Figures 1 to 6 As shown, it includes a tank body 1, a feed hopper 2 connected to the top of the tank body 1 and a storage hopper 3 arranged in the tank body 1, the bottom end of the tank body 1 is connected to a discharge pipe 4, the bottom of the tank body 1 is provided with a screen 5 in the horizontal direction, the top of the tank body 1 is provided with a stirring shaft 6 that rotates in the vertical direction, the top of the tank body 1 is provided with a driving motor 7 for driving the stirring shaft 6 to rotate, the bottom of the stirring shaft 6 is provided with a sieve plate 8 that can movably fit the top of the screen 5, a first discharge port 9 is provided at the bottom of the storage hopper 3, the stirring shaft 6 moves through the first discharge port 9, a discharge mechanism 10 for controlling the opening and closing of the first discharge port 9 is provided in the tank body 1, a grinding mechanism 11 for grinding putty powder is provided in the tank body 1, and the grinding mechanism 11 is located between the storage hopper 3 and the screen 5.

[0040] Furthermore, the unloading mechanism 10 includes a first control panel 10a provided at the first unloading port 9 and several fan-shaped second unloading ports 10b evenly opened on the first control panel 10a. The stirring shaft 6 moves through the first control panel 10a. Several fan-shaped second control panels 12 corresponding to the second unloading ports 10b are evenly arranged on the stirring shaft 6. The bottom of the second control panel 12 can be movably fitted to the top of the first control panel 10a.

[0041] Furthermore, the grinding mechanism 11 includes a grinding bucket 11a arranged in the tank body 1 and a first grinding block 11b arranged on the stirring shaft 6 to cooperate with the grinding bucket 11a. The bottom of the first grinding block 11b can be movably fitted to the inner wall of the grinding bucket 11a. A spiral thread groove 13 is provided at the bottom of the grinding bucket 11a. The horizontal plane of the top of the grinding bucket 11a is higher than the horizontal plane of the top of the first grinding block 11b.

[0042] Furthermore, a bucket-shaped lower hopper 14 is provided in the tank body 1, the cross-sectional area of ​​the top of the lower hopper 14 is smaller than the cross-sectional area of ​​the bottom of the lower hopper 14, the stirring shaft 6 moves through the lower hopper 14, the central axis of the lower hopper 14 coincides with the central axis of the stirring shaft 6, and the cross-sectional area of ​​the bottom of the lower hopper 14 is larger than the cross-sectional area of ​​the top of the first grinding block 11b.

[0043] Furthermore, a discharge barrel 15 is rotatably provided at the bottom of the first discharge port 9, and a fixed block 16 fixedly connected to the inner wall of the discharge barrel 15 is symmetrically provided on the stirring shaft 6. There is a set distance between the bottom end of the discharge barrel 15 and the top end of the discharge hopper 14.

[0044] Furthermore, a return spring 17 is symmetrically arranged in the horizontal direction inside the tank body 1, and a knocking rod 18 is arranged at the end of the return spring 17 in the vertical direction. A first limiting rod 19 is horizontally arranged on the knocking rod 18, and one end of the first limiting rod 19 moves through the adjacent return spring 17 and the tank body 1, and a first pushing block 20 is arranged at the other end of the first limiting rod 19. The outer wall of the discharge barrel 15 is symmetrically provided with a protrusion 21 that can push the first pushing block 20 away from the stirring shaft 6. When the two ends of the knocking rod 18 respectively contact the storage hopper 3 and the discharge hopper 14, the return spring 17 is in a compressed state.

[0045] Furthermore, a first guide rod 22 and a second guide rod 23 are respectively provided in the horizontal direction on the side of the knocking rod 18 away from the stirring shaft 6, and a first guide cylinder 24 cooperating with the first guide rod 22 is symmetrically provided on the inner wall of the tank body 1, and the end of the first guide rod 22 is movably fitted to the inner wall of the first guide cylinder 24, and a second guide cylinder 25 cooperating with the second guide rod 23 is symmetrically provided on the inner wall of the tank body 1, and the end of the second guide rod 23 is movably fitted to the inner wall of the second guide cylinder 25, and there is a set distance between the ends of the first guide rod 22 and the second guide rod 23 and the inner wall of the tank body 1, and the first guide cylinder 24 is located directly below the adjacent second guide cylinder 25.

[0046] Furthermore, a push rod 26 is vertically provided at the end of the first guide rod 22, and a long push hole 27 is provided at the bottom of the first guide cylinder 24 to cooperate with the push rod 26. The push rod 26 movably passes through the push hole 27, and a second push block 28 is provided at the bottom of the push rod 26 to movably fit the inner wall of the grinding bucket 11a. The grinding bucket 11a is movably connected to the tank body 1, and a plurality of connecting blocks 29 are evenly provided on the top of the grinding bucket 11a in the horizontal direction. The tank body 1 is provided with a plurality of connecting holes 30 corresponding to the connecting blocks 29. The connecting blocks 29 can movably fit the inner wall of the connecting hole 30, and the outer wall of the tank body 1 is provided with a plurality of blocks 31 for blocking the connecting hole 30. There is a connecting rod 32, and a connecting spring 33 is arranged between the connecting block 29 and the connecting hole 30 in the vertical direction. The connecting rod 32 moves through the connecting spring 33 and the connecting block 29. A cylindrical second grinding block 34 is provided at the bottom of the first grinding block 11b, and a cylindrical grinding cylinder 35 is provided at the bottom end of the grinding bucket 11a. There is a set distance between the inner wall of the grinding cylinder 35 and the second grinding block 34. When the top of the connecting block 29 is attached to the top of the connecting hole 30, the first grinding block 11b is movably attached to the inner wall of the grinding bucket 11a, and the connecting spring 33 is in a compressed state. When the protrusion 21 pushes the first pushing block 20 away from the stirring shaft 6, the second pushing block 28 can push the grinding bucket 11a to move downward.

[0047] Furthermore, a pushing wheel 36 is provided on the first pushing block 20 to rotate in a vertical direction, and the protrusion 21 can push the pushing wheel 36 to move in a direction away from the stirring shaft 6 .

[0048] Furthermore, a first spherical knocking block 37 is provided at the top end of the knocking rod 18 , and a second spherical knocking block 38 is provided at the bottom end of the knocking rod 18 .

[0049] When it is necessary to screen the putty powder or bagged putty powder after production, the putty powder can be directly transported to the feed hopper 2 through a pipeline, or the bag opening of the bagged putty powder can be clamped on the top of the feed hopper 2, and then the putty powder can be poured into the storage hopper 3 in the tank body 1, and then the driving motor 7 is turned on to drive the stirring shaft 6, the second control board 12, etc. to rotate. During the rotation of the second control board 12, the putty powder is pushed to fall from the second discharge port 10b into the discharge barrel 15, and the fixed block 16 that rotates with the stirring shaft 6 can stir and disperse the putty powder in the discharge barrel 15, so that the putty powder falls on the top of the discharge hopper 14 after dispersion, and the discharge barrel 15 rotates with the stirring shaft 6. The symmetrically arranged protrusions 21 are driven to rotate accordingly. During the rotation of the protrusions 21, the driving wheel 36, the second driving block 28, etc. can be intermittently pushed to move horizontally in the direction away from the stirring shaft 6. During the horizontal movement of the second driving block 28 in the direction away from the stirring shaft 6, the grinding bucket 11a is pushed downward, so that larger pieces of putty powder can also enter between the first grinding block 11b and the grinding bucket 11a for grinding (it should be noted that the protrusions 21 occupy a smaller part of the circumference of the discharge barrel 15, so most of the grinding bucket 11a is in a state of being attached to the first grinding block 11b. At the same time, since the putty powder particles are usually agglomerated due to moisture absorption, they are easily dispersed under external forces. Therefore, the grinding force of the first grinding block 11b on the agglomerated putty powder does not need to be too great. Even if the grinding bucket 11a remains in contact with the first grinding block 11b under the elastic force of the connecting spring 33, the grinding effect on the putty powder can be achieved). In the process of the protrusion 21 moving away from the pushing wheel 36, the knocking rod 18 moves in the direction close to the stirring shaft 6 under the elastic force of the return spring 17, until the first knocking blocks 37 and the second knocking blocks 38 at both ends of the knocking rod 18 knock on the outer walls of the storage hopper 3 and the lower hopper 14 respectively, so that the adsorbed putty powder moves downward under the action of vibration, and then the putty powder ground by the first grinding block 11b is mixed with the grinding wheel 36 by the second grinding block 34. The putty powder falls onto the screen 5 below through the gap between the cylinders 35, and the screen plate 8 rotating with the stirring shaft 6 can push the putty powder on the screen 5 to pass through the screen 5 quickly. Finally, the sieved putty powder is directly introduced into the packaging or mixing device from the discharge pipe 4 at the bottom of the tank body 1; by setting up a storage hopper 3, etc., on the one hand, the putty powder that is intermittently fed can be temporarily stored in the storage hopper 3, and then gradually ground and screened. On the other hand, after the putty powder enters the wider storage hopper 3 from the relatively narrow feed hopper 2, it will escape between the storage hopper 3 and the tank body 1, and then settle down through the obstruction of the tank body 1, thereby greatly reducing the escape of putty powder into the outside air, avoiding inhalation by workers, and reducing the safety risk of operation.

[0050] By setting the first control board 10a and the second control board 12, etc., the second control board 12 pushes the putty powder in the storage hopper 3 to be discharged through the second discharge port 10b during the rotation of the stirring shaft 6. On the one hand, the discharge speed of the putty powder can be controlled by the size and number of the second discharge ports 10b, so that the discharge speed of the putty powder can be coordinated with the grinding speed of the grinding mechanism 11. On the other hand, the second control board 12 can push the putty powder to move during the rotation process, so that the putty powder can be discharged smoothly through the second discharge port 10b, thereby avoiding the putty powder from piling up in the storage hopper 3 and failing to be discharged smoothly through the second discharge port 10b.

[0051] By setting the grinding hopper 11a, etc., since the top of the grinding hopper 11a and the bottom of the lower hopper 14 are higher than the first grinding block 11b, and the bottom cross-sectional area of ​​the lower hopper 14 is larger than that of the first grinding block 11b, the putty powder dropped from the second discharge port 10b falls on the top of the grinding hopper 11a, rather than on the first grinding block 11b. Since the first grinding block 11b rotates with the stirring shaft 6, the bottom of the first grinding block 11b has a spiral thread groove 13, and the putty powder on the top of the grinding hopper 11a will be discharged from the thread groove 13 as the first grinding block 11b rotates. It enters between the first grinding block 11b and the grinding bucket 11a for grinding (it should be noted that the spiral groove 13 provided at the bottom of the first grinding block 11b can allow the powdered putty powder to pass through, but will squeeze and grind the lumpy putty powder after agglomeration). Then, the ground putty powder falls through the bottom of the first grinding block 11b onto the screen 5 below. By providing the first grinding block 11b, the spiral groove and the grinding bucket 11a, the first grinding block 11b rotating with the stirring shaft 6 will grind the putty powder so that the agglomerated putty powder is dispersed. Then it falls onto the screen 5, thereby ensuring that the putty powder can pass the screening of the screen 5, avoiding the need to pulverize the putty powder that has not passed the screening separately after the putty powder is directly screened, which increases the operation process and reduces the production efficiency; by setting the lower hopper 14, the putty powder falling from the second feeding port 10b first falls on the lower hopper 14, and then falls from the inclined surface of the lower hopper 14 to the top of the grinding hopper 11a, on the one hand, the putty powder falling from the first feeding port can be dispersed, so that the putty powder can be evenly dispersed and fall into the grinding hopper 11a On the other hand, it can make the putty powder fall on the top of the grinding bucket 11a without contacting the first grinding block 11b at this time, and then enter between the first grinding block 11b and the grinding bucket 11a along the inclined surface of the grinding bucket 11a as the first grinding block 11b rotates, which can avoid the putty powder from gathering on the top of the first grinding block 11b, causing part of the putty powder to always stay on the top of the first grinding block 11b and unable to fall down for grinding, resulting in waste of putty powder.

[0052] By setting the discharge barrel 15, the putty powder can be discharged from the second discharge port and can fall to the top of the lower hopper 14 through the limit of the discharge barrel 15, and then slide down along the top of the lower hopper 14 to be dispersed, so as to prevent the putty powder from escaping everywhere in the tank body 1 during the process of falling from the second discharge port, resulting in uneven distribution of the putty powder on the lower hopper 14, affecting the grinding efficiency of the first grinding block 11b for the putty powder; at the same time, the discharge barrel 15 rotates with the stirring shaft 6 through the fixed block 16, and can stir the putty powder falling in the discharge barrel 15, thereby dispersing the putty powder falling from the second discharge port, so that the putty powder falls evenly on the top of the lower hopper 14, and then further dispersed in the process of sliding downward along the lower hopper 14, so that the putty powder can be evenly dispersed on the top of the grinding hopper 11a for grinding, avoiding accumulation in some positions and improving the grinding efficiency.

[0053] By setting a knocking rod 18, during the rotation of the stirring shaft 6, the discharge barrel 15 is driven to rotate through the fixed block 16, and then the two symmetrically arranged protrusions 21 are driven to rotate. When the two protrusions 21 rotate to one side and abut against the first pushing blocks 20 on both sides, the protrusion 21 rotates in the direction close to the adjacent first pushing block 20, which can push the first pushing block 20 to move in the direction away from the stirring shaft 6, thereby pushing the first limiting rod 19 and the knocking rod 18 to push the return spring 17 to move in the direction away from the stirring shaft 6. In this process, the return spring 17 is compressed, and then the protrusion 21 rotates until the end of the protrusion 21 abuts against the first pushing block 20. Then, the protrusion 21 rotates in the direction away from the adjacent first pushing block 20. Since the return spring 17 is in a compressed state, the knocking rod 18 and the first pushing block 20 are pushed along the direction close to the adjacent first pushing block 20 under the action of the elastic force of the return spring 17. The hopper 3 and the lower hopper 14 are pressed together, and the ...

[0054] By setting the first guide cylinder 24 and the second guide cylinder 25, the ends of the first guide rod 22 and the second guide rod 23 are respectively engaged with the first guide cylinder 24 and the second guide cylinder 25, which can not only form a support for the knocking rod 18, the first push block 20, etc. to prevent the return spring 17 from twisting under the action of gravity, but also can further limit the moving direction of the knocking rod 18, the first push block 20, etc., thereby improving the stability of the knocking rod 18, etc. during the movement process.

[0055] By setting the second pushing block 28, the connecting block 29, etc., when the protrusion 21 pushes the knocking rod 18 to move in the direction away from the stirring shaft 6 through the first pushing block 20, the knocking rod 18 drives the first guide rod 22 and the pushing rod 26 to move along the pushing hole 27 (in the horizontal direction). In this process, the second pushing block 28 applies a force to the inner wall of the lower hopper 14. Since the second pushing block 28 and the grinding hopper 11a are curved surfaces that fit each other, the force of the second pushing block 28 on the grinding hopper 11a can be decomposed into horizontal and vertical forces. The horizontal force is offset by the reaction of the inner wall of the tank body 1, and the vertical force is offset by the reaction of the inner wall of the tank body 1. The force in the direction of the rotation of the first push block 20 can push the grinding bucket 11a to move in the vertical downward direction (it should be noted that the distance that the grinding bucket 11a can be lowered is limited by the moving distance of the first push block 20. Therefore, the downward moving distance of the grinding bucket 11a can be adjusted by the protrusion 21, so that the granular putty powder can fall into the space between the grinding bucket 11a and the first grinding block 11b, while avoiding a large amount of putty powder entering the space between the first grinding block 11b and the grinding bucket 11a due to excessive movement distance), compressing the connecting spring 33, and then in the process of the knocking rod 18 approaching the stirring shaft 6, it also drives the second push block 28 to move in the direction close to the stirring shaft 6, so that the grinding bucket 11a can be lowered in the direction of the rotation of the first push block 20. The bucket 11a rises to the connection block 29 under the elastic action of the connecting spring 33 and contacts the connection hole 30; therefore, in the process of the protrusion 21 pushing the first pushing block 20 to move back and forth, the grinding bucket 11a is driven to move up and down intermittently. In the process of the grinding bucket 11a descending, some relatively large agglomerated putty powder in the putty powder can enter between the grinding bucket 11a and the first grinding block 11b, and then the first grinding block 11b is ground and crushed, thereby preventing some agglomerated putty powder from being unable to enter the bottom of the first grinding block 11b for grinding, thereby ensuring the grinding effect of the grinding block on the putty powder; by setting the second grinding block 34 and the grinding cylinder 35, the grinding cylinder 3 5 and the second grinding block 34. There is a certain gap between the inner wall of the grinding bucket 11a and the second grinding block 34, which ensures that the putty powder ground by the first grinding block 11b falls smoothly onto the screen 5 below, and can also prevent the agglomerated putty powder from passing through. Therefore, when the grinding bucket 11a and the grinding cylinder 35 move downward, if the agglomerated putty powder falls directly from the top of the grinding bucket 11a to the bottom of the grinding bucket 11a, it can also pass through the obstruction of the second grinding block 34 and stay at the bottom of the grinding bucket 11a. After that, it can pass through the gap between the grinding cylinder 35 and the second grinding block 34 after being ground by the first grinding block 11b, thereby ensuring that the putty powder can be fully ground and improving the grinding and screening effect of the putty powder.

[0056] By setting the pushing wheel 36, the sliding friction between the protrusion 21 and the first pushing block 20 is converted into rolling friction between the protrusion 21 and the pushing wheel 36, thereby reducing the friction between the protrusion 21 and the pushing wheel 36, reducing the wear that may be caused by the protrusion 21 pushing the pushing wheel 36, and extending the service life of the equipment.

[0057] By setting a spherical first knocking block 37 and a second knocking block 38, on the one hand, the curved surfaces of the first knocking block 37 and the second knocking block 38 respectively abut against the storage hopper 3 and the lower hopper 14, thereby reducing the friction generated during the knocking process. On the other hand, the first knocking block 37 and the second knocking block 38 are in point contact with the storage hopper 3 and the lower hopper 14, so that the force of the knocking rod 18 on the storage hopper 3 and the lower hopper 14 is concentrated on one point, so that the vibration generated in the process of the first knocking block 37 and the second knocking block 38 knocking the storage hopper 3 and the lower hopper 14 is more obvious, and the vibration effect on the putty powder is more obvious.

[0058] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0059] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A screening device for putty powder processing, characterized in that: The invention comprises a tank body (1), a feed hopper (2) connected to the top of the tank body (1), and a storage hopper (3) arranged in the tank body (1); a feed pipe (4) is connected to the bottom of the tank body (1); a screen (5) is arranged at the bottom of the tank body (1) in a horizontal direction; a stirring shaft (6) is arranged at the top of the tank body (1) for rotating in a vertical direction; a driving motor (7) for driving the stirring shaft (6) to rotate is arranged at the top of the tank body (1); and the bottom of the stirring shaft (6) is provided with a plurality of screws. A sieve plate (8) is provided which can be movably attached to the top of the sieve (5); a first discharge port (9) is provided at the bottom of the storage hopper (3); the stirring shaft (6) moves through the first discharge port (9); a discharge mechanism (10) for controlling the opening and closing of the first discharge port (9) is provided in the tank body (1); a grinding mechanism (11) for grinding putty powder is provided in the tank body (1); and the grinding mechanism (11) is located between the storage hopper (3) and the sieve (5).

2. A screening device for putty powder processing according to claim 1, characterized in that: The unloading mechanism (10) includes a first control plate (10a) arranged at the first unloading port (9) and a plurality of fan-shaped second unloading ports (10b) uniformly opened on the first control plate (10a); the stirring shaft (6) moves through the first control plate (10a); the stirring shaft (6) is uniformly provided with a plurality of fan-shaped second control plates (12) corresponding one-to-one to the second unloading ports (10b); the bottom of the second control plate (12) can be movably fitted to the top of the first control plate (10a).

3. A screening device for putty powder processing according to claim 1, characterized in that: The grinding mechanism (11) comprises a grinding bucket (11a) arranged in the tank body (1) and a first grinding block (11b) arranged on the stirring shaft (6) and matched with the grinding bucket (11a); the bottom of the first grinding block (11b) can be movably fitted to the inner wall of the grinding bucket (11a); a spiral thread groove (13) is provided at the bottom of the grinding bucket (11a); and the horizontal plane at which the top of the grinding bucket (11a) is located is higher than the horizontal plane at which the top of the first grinding block (11b) is located.

4. A screening device for putty powder processing according to claim 3, characterized in that: A bucket-shaped lower hopper (14) is provided in the tank body (1), the cross-sectional area of ​​the top of the lower hopper (14) is smaller than the cross-sectional area of ​​the bottom of the lower hopper (14), the stirring shaft (6) moves through the lower hopper (14), the central axis of the lower hopper (14) coincides with the central axis of the stirring shaft (6), and the cross-sectional area of ​​the bottom of the lower hopper (14) is larger than the cross-sectional area of ​​the top of the first grinding block (11b).

5. A screening device for putty powder processing according to claim 4, characterized in that: A discharge barrel (15) is rotatably provided at the bottom of the first discharge port (9), and a fixed block (16) fixedly connected to the inner wall of the discharge barrel (15) is symmetrically provided on the stirring shaft (6), and a set distance is provided between the bottom end of the discharge barrel (15) and the top end of the discharge hopper (14).

6. A screening device for putty powder processing according to claim 5, characterized in that: A return spring (17) is symmetrically arranged in the horizontal direction in the tank body (1), and a knocking rod (18) is arranged at the end of the return spring (17) in the vertical direction. A first limiting rod (19) is horizontally arranged on the knocking rod (18), and one end of the first limiting rod (19) moves through the adjacent return spring (17) and the tank body (1). A first pushing block (20) is arranged at the other end of the first limiting rod (19). The outer wall of the discharge barrel (15) is symmetrically provided with a protrusion (21) that can push the first pushing block (20) away from the stirring shaft (6). When the two ends of the knocking rod (18) respectively contact the storage hopper (3) and the discharge hopper (14), the return spring (17) is in a compressed state.

7. A screening device for putty powder processing according to claim 6, characterized in that: A first guide rod (22) and a second guide rod (23) are respectively provided in the horizontal direction on one side of the knocking rod (18) away from the stirring shaft (6); a first guide cylinder (24) matched with the first guide rod (22) is symmetrically provided on the inner wall of the tank body (1); the end of the first guide rod (22) is movably fitted to the inner wall of the first guide cylinder (24); a second guide cylinder (25) matched with the second guide rod (23) is symmetrically provided on the inner wall of the tank body (1); the end of the second guide rod (23) is movably fitted to the inner wall of the second guide cylinder (25); a set distance is provided between the ends of the first guide rod (22) and the second guide rod (23) and the inner wall of the tank body (1); the first guide cylinder (24) is located directly below the adjacent second guide cylinder (25).

8. A screening device for putty powder processing according to claim 7, characterized in that: A push rod (26) is vertically provided at the end of the first guide rod (22), and a long push hole (27) is provided at the bottom of the first guide cylinder (24) to match the push rod (26). The push rod (26) moves through the push hole (27), and a second push block (28) is provided at the bottom of the push rod (26) to be movably fitted to the inner wall of the grinding bucket (11a). The grinding bucket (11a) is movably connected to the tank body (1). The top of the grinding bucket (11a) is evenly provided with a plurality of connecting blocks (29) in the horizontal direction, the tank body (1) is provided with a plurality of connecting holes (30) corresponding to the connecting blocks (29), the connecting blocks (29) can be movably fitted to the inner wall of the connecting hole (30), the outer wall of the tank body (1) is provided with a plurality of blocking blocks (31) for blocking the connecting hole (30), and the connecting hole (30) is vertically provided with a connecting block. A connecting rod (32) is provided between the connecting block (29) and the connecting hole (30) in a vertical direction. The connecting rod (32) moves through the connecting spring (33) and the connecting block (29). A cylindrical second grinding block (34) is provided at the bottom of the first grinding block (11b). A cylindrical grinding cylinder (35) is provided at the bottom end of the grinding bucket (11a). A set distance is provided between the inner wall of the grinding cylinder (35) and the second grinding block (34). When the top of the connecting block (29) is attached to the top of the connecting hole (30), the first grinding block (11b) is movably attached to the inner wall of the grinding bucket (11a), and the connecting spring (33) is in a compressed state. When the protrusion (21) pushes the first pushing block (20) away from the stirring shaft (6), the second pushing block (28) can push the grinding bucket (11a) to move downward.

9. A screening device for putty powder processing according to claim 6, characterized in that: A driving wheel (36) is provided on the first driving block (20) to rotate in a vertical direction, and the protrusion (21) can drive the driving wheel (36) to move in a direction away from the stirring shaft (6).

10. The screening device for putty powder processing according to claim 6, characterized in that: The top end of the knocking rod (18) is provided with a spherical first knocking block (37), and the bottom end of the knocking rod (18) is provided with a spherical second knocking block (38).

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