Silicon carbide powder screening device

Abstract

The present invention relates to the field of micro powder screening technology, and in particular to a silicon carbide micro powder screening device, comprising a frame and a swing screen, the swing screen comprising a screen box, the screen box comprising a cover, a screen frame and a bottom frame, a discharge barrel is arranged on one side of the screen frame, a support frame is arranged on one side of the frame, a discharge mechanism is installed on the support frame, the discharge mechanism is connected to the discharge barrel through a bellows, a cylinder 2 is installed on the skirt of the bottom frame, a push rod is connected to the output end of the cylinder 2, one end of the push rod passes through the skirt of the screen frame and is fixed to the skirt of the cover, a sliding sleeve is sleeved on the push rod, a threaded hole is arranged on one side of the sliding sleeve, and a locking bolt is connected to the threaded hole. When a certain layer of the screen frame needs to be maintained, the operator only needs to adjust the sliding sleeve corresponding to the layer of the screen frame and the sliding sleeve of the upper layer, and the separation of the target screen frame from the upper and lower layers can be easily achieved through the lifting effect of the cylinder 2, making the maintenance process more efficient and simple, and greatly reducing the maintenance time and cost.

Description

Technical Field

[0001] The invention relates to the technical field of micro powder screening, and in particular to a silicon carbide micro powder screening device. Background Art

[0002] Silicon carbide powder is an important industrial raw material with the characteristics of high hardness, good wear resistance and strong thermal stability. It is widely used in grinding, polishing, sand blasting, ceramic manufacturing, refractory materials and other fields.

[0003] The screening of silicon carbide micropowder is mainly to obtain micropowder products with a specific particle size distribution to meet the different particle size requirements of different industrial applications. The Chinese utility model patent with publication number CN217165332U discloses a silicon carbide powder screening device, which includes a screening barrel, a fixed top cover, a silicon carbide powder inlet, a connecting arm, a discharge port, a fixed seat, a fixed spring, and a connecting seat. The screening barrel is installed in sequence according to the aperture classification, the top of the screening barrel is equipped with a fixed top cover, the top of the fixed top cover is equipped with a silicon carbide powder inlet, the side of the screening barrel is equipped with a connecting arm, the bottom of the front end of the connecting arm is equipped with a discharge port, the bottom of the screening barrel is equipped with a fixed seat, the bottom of the fixed seat is equipped with a fixed spring, and the bottom of the fixed spring is equipped with a connecting seat.

[0004] When the above screening device is screening, the material is first introduced into the storage barrel for temporary storage after screening, and then bagged by an additional bagging mechanism, which not only increases the material flow steps, but also may cause material loss or contamination due to multiple transfers. Summary of the invention

[0005] The object of the present invention is to provide a silicon carbide micropowder screening device, aiming to realize the integrated operation of screening and bagging.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a silicon carbide micropowder screening device, comprising a frame and a swing screen, the swing screen comprising a vibrating seat arranged on the frame and a screen box installed on the vibrating seat, the screen box comprising a buckled cover, a screen frame and a bottom frame from top to bottom, one side of the screen frame is provided with a discharge barrel, and the top of the cover is provided with a feed barrel; one side of the frame is provided with a support frame, and a discharge mechanism corresponding to the feed barrel is fixedly installed on the support frame, and one end of the discharge mechanism is connected to the discharge port of the discharge barrel through a bellows; two groups of symmetrical cylinders are installed on the skirt of the bottom frame, the output end of the cylinder two is connected with a push rod, the rod body of the push rod is provided with a scale line for recording the position height, one end of the push rod passes through the skirt of the screen frame and is fixed to the skirt of the cover, a sliding sleeve is sleeved on the push rod, the sliding sleeve is located under the skirt of the screen frame, and a threaded hole is provided on one side of the sliding sleeve, and a locking bolt is connected to the threaded hole.

[0007] Preferably, the discharge mechanism includes a discharge pipe, a lower ring seat, a clamp and an upper ring seat, the upper ring seat and the lower ring seat are arranged up and down, the discharge pipe is fixedly connected to the upper ring seat, the upper end of the discharge pipe is fixedly connected to the bellows, the lower end of the discharge pipe passes through the upper ring seat and the lower ring seat in sequence, the bottom of the lower ring seat is connected with an anti-overflow cover, the lower end of the discharge pipe protrudes from the lower end surface of the anti-overflow cover, the clamp is provided with multiple groups and distributed around the anti-overflow cover, the clamp is respectively connected to the lower ring seat and the upper ring seat through a linkage assembly, support seats installed to the support frame are provided on both sides of the lower ring seat, a cylinder is provided on one side of the support seat, and the output end of the cylinder is fixed to the lower end surface of the upper ring seat.

[0008] Preferably, the discharge mechanism also includes a pressure ring, which is located between the lower ring seat and the overflow cover, and the cylinder one is a double-headed cylinder, the upper output end of the cylinder one is fixed to the lower end face of the upper ring seat, and the lower output end of the cylinder one is fixed to the upper end face of the pressure ring.

[0009] Preferably, the linkage assembly includes an upper ear seat fixedly mounted on the lower end surface of the upper ring seat and a lower ear seat fixedly mounted on the upper end surface of the lower ring seat, the upper end of the lower ear seat is provided with a circular through hole, the lower end of the upper ear seat is provided with an oblong through hole, two groups of pins are inserted at one end of the clamping jaw, the clamping jaw is rotatably connected to the lower ear seat by one of the pins passing through the circular through hole, and the clamping jaw is rotatably connected to the upper ear seat by the other pin passing through the oblong through hole.

[0010] Preferably, the lower end surface of the upper ring seat and the upper end surface of the lower ring seat are both provided with positioning grooves adapted to the lower ear seat or the upper ear seat.

[0011] Preferably, the lower end surface of the pressure ring, the upper end surface of the anti-overflow cover, the side of the clamping claw facing the anti-overflow cover, and the outer side wall of the anti-overflow cover are all provided with anti-slip patterns.

[0012] Preferably, the upper end surface of the pressure ring is fixed with multiple groups of guide rods distributed around and passing through the lower ring seat, the upper end surface of the lower ring seat is fixed with multiple groups of guide rods distributed around and passing through the upper ring seat, and the upper ring seat is fixed with multiple groups of guide sleeves adapted to the guide rods.

[0013] Preferably, a plurality of sets of circumferentially distributed guide shafts are fixed to the skirt of the bottom frame, and one end of the guide shaft passes through the skirt of the screen frame and the skirt of the cover.

[0014] Preferably, an operating platform is provided on the other side of the frame.

[0015] Preferably, a ladder is provided on one side of the operating platform.

[0016] After adopting the above technical solution, the beneficial effects of the present invention are:

[0017] 1. When a certain layer of screen frame needs to be maintained, the operator only needs to adjust the sliding sleeve corresponding to the layer of screen frame and the sliding sleeve of the upper layer. Through the lifting effect of cylinder 2, the target screen frame can be easily separated from the upper and lower layers, making the maintenance process more efficient and simple, greatly reducing maintenance time and cost;

[0018] 2. In the operation mode of the traditional screening machine, the material is first introduced into the storage barrel for temporary storage after screening, and then bagged by an additional bagging mechanism, which not only increases the material circulation steps, but also may cause material loss or contamination due to multiple transfers. The discharge mechanism provided in the present invention realizes the integrated operation of screening and bagging. After screening, the material can directly enter the packaging bag through the discharge mechanism without temporary storage in the intermediate storage barrel, which simplifies the production process, greatly reduces the risk of material loss and contamination during transportation, and significantly improves the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative work.

[0020] Figure 1 It is a front view of the present invention;

[0021] Figure 2 It is a left side view of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the discharge mechanism;

[0023] Figure 4 This is the installation diagram of the discharge pipe;

[0024] Figure 5 This is a schematic diagram of the installation of the clamping jaws;

[0025] Figure 6 It is a structural diagram of the linkage component;

[0026] Figure 7 It is a structural diagram of the swing screen.

[0027] Explanation of the accompanying drawings: 1-frame, 2-vibration seat, 3-screen box, 4-screen frame, 5-feed cylinder, 6-discharge cylinder, 7-bellows, 8-discharge mechanism, 9-operating platform, 10-ladder, 11-discharge pipe, 12-flange ring, 13-lower ring seat, 14-pressure ring, 15-clamp, 16-overflow cover, 17-cylinder one, 18-support seat, 19-upper ring seat, 20-guide rod, 21-guide sleeve, 22-guide rod, 23-protrusion, 24-retaining ring, 25-linkage assembly, 26-positioning groove, 27-upper ear seat, 28-long round through hole, 29-latch pin, 30-lower ear seat, 31-cover, 32-bottom frame, 33-guide shaft, 34-skirt, 35-cylinder two, 36-sliding sleeve, 37-locking bolt, 38-top rod. DETAILED DESCRIPTION

[0028] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0029] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0030] like Figure 1-7 As shown, an embodiment of the present invention provides a silicon carbide micro powder screening device, including a frame 1 and a swing screen. A support frame is provided on one side of the frame 1, and multiple sets of discharge mechanisms 8 are fixedly installed on the support frame. An operating platform 9 is provided on the other side of the frame 1, and a ladder 10 connected to the ground is provided on one side of the operating platform 9 to facilitate operators to go up and down.

[0031] The swing screen includes a vibration seat 2 arranged on a frame 1 and a screen box 3 mounted on the vibration seat 2. The screen box 3 includes a snap-on cover 31, a screen frame 4 (the number is determined according to demand, and the screen of the bottom screen frame 4 has no mesh) and a bottom frame 32 from top to bottom, and a feed cylinder 5 is arranged on the top of the cover 31. A discharge cylinder 6 is arranged on one side of the screen frame 4, and the discharge port of the discharge cylinder 6 is connected to the corresponding discharge mechanism 8 through a bellows 7.

[0032] Silicon carbide powder is introduced into the topmost screen frame 4 through the feed barrel 5. Driven by the vibration seat 2, the screen frame 4 generates a swinging vibration motion, which causes the silicon carbide powder in the screen frame 4 to be continuously impacted and dispersed, thereby being screened on its screen. Silicon carbide powders of different particle sizes are blocked or passed through screens of different apertures during the screening process. Smaller particles will pass through the screen and fall into the next layer of the screen frame 4, while larger particles will remain on the screen of the current screen frame 4. Silicon carbide powders of different particle size ranges are effectively separated through the step-by-step screening of multiple layers of screen frames 4. The screened silicon carbide powders fall into the corresponding discharge barrels 6 according to their particle sizes, and then are introduced into the discharge mechanism 8 through the bellows 7 for bagging.

[0033] The outer side walls of the cover 31, the screen frame 4 and the bottom frame 32 are all provided with skirts 34, and two sets of symmetrical cylinders 2 35 are installed on the skirt 34 of the bottom frame 32. The output end of the cylinder 2 35 is connected with a push rod 38, and the scale line provided on the rod is used to record the position height. One end of the push rod 38 passes through the skirt 34 of the screen frame 4 and is fixed to the skirt 34 of the cover 31, so as to directly or indirectly transmit the thrust of the cylinder 2 35 to the screen frame 4 and the cover 31. A sliding sleeve 36 is sleeved on the push rod 38 so that it can slide up and down along the push rod 38. A threaded hole is provided on one side of the sliding sleeve 36, and a locking bolt 37 is connected to the threaded hole. By rotating the locking bolt 37 so that its end abuts against the push rod 38, the position of the sliding sleeve 36 on the push rod 38 can be locked. The number of the sliding sleeves 36 is consistent with the number of the screen frame 4, and the position of the sliding sleeve 36 is below the skirt 34 of the corresponding screen frame 4. A plurality of guide shafts 33 are distributed around the skirt 34 of the bottom frame 32, and one end of the guide shaft 33 passes through the sieve frame 4 and the skirt 34 of the cover 31, forming a sliding fit to ensure the stability and linearity of the sieve frame 4 during the lifting process.

[0034] When a certain layer of screen frame 4 needs to be maintained, the operator only needs to adjust the sliding sleeve 36 corresponding to the layer of screen frame 4 and the sliding sleeve 36 corresponding to the previous layer of screen frame 4, tighten the locking bolt 37 to lock the relative position between the sliding sleeve 36 and the push rod 38, and through the lifting action of cylinder 2 35, the locked sliding sleeve 36 supports the current screen frame 4 and the skirt 34 of the previous layer of screen frame 4, thereby realizing the separation of the target screen frame 4 from the upper and lower layers for maintenance work.

[0035] The discharge mechanism 8 can clamp the packaging bag and then carry out bagging, and includes a discharge pipe 11, a lower ring seat 13, a pressure ring 14 and an upper ring seat 19. The upper ring seat 19 and the lower ring seat 13 are arranged at intervals from top to bottom, and the outer wall of the discharge pipe 11 is provided with a flange ring 12, which is fixed to the upper end surface of the upper ring seat 19. The upper end of the discharge pipe 11 is fixedly connected to the bellows 7, and the lower end of the discharge pipe 11 passes through the upper ring seat 19 and the lower ring seat 13 in sequence, and the bottom of the lower ring seat 13 is connected with an anti-overflow cover 16. The lower end surface of the lower ring seat 13 is provided with a protrusion 23, and the center hole on the anti-overflow cover 16 is sleeved on the protrusion 23, and then pressed by a retaining ring 24, and the retaining ring 24 and the protrusion 23 are fixed by bolts. The upper end of the discharge pipe 11 is fixedly connected to the bellows 7 for receiving the screened silicon carbide powder, and the lower end thereof passes through the upper ring seat 19 and the lower ring seat 13 in sequence, and finally protrudes from the lower end surface of the overflow prevention cover 16 to ensure that the silicon carbide powder can be discharged smoothly.

[0036] Multiple groups of clamping jaws 15 are distributed around the overflow shield 16, and the clamping jaws 15 are connected to the lower ring seat 13 and the upper ring seat 19 respectively through the linkage assembly 25. Support seats 18 mounted to the support frame are arranged on both sides of the lower ring seat 13, and a cylinder 17 is arranged on one side of the support seat 18, and the output end of the cylinder 17 is fixed to the lower end face of the upper ring seat 19. Multiple groups of guide rods 20 distributed around and passing through the upper ring seat 19 are fixed to the upper end face of the lower ring seat 13, and multiple groups of guide sleeves 21 adapted to the guide rods 20 are fixed to the upper ring seat 19. The pressure ring 14 is located between the lower ring seat 13 and the overflow shield 16, and multiple groups of guide rods 22 distributed around and passing through the lower ring seat 13 are fixed to the upper end face of the pressure ring 14. The cylinder 17 is a double-headed cylinder, and the upper output end of the cylinder 17 is fixed to the lower end face of the upper ring seat 19, and the lower output end of the cylinder 17 is fixed to the upper end face of the pressure ring 14.

[0037] The linkage assembly 25 includes an upper ear seat 27 fixedly mounted on the lower end surface of the upper ring seat 19 and a lower ear seat 30 fixedly mounted on the upper end surface of the lower ring seat 13. The lower end surface of the upper ring seat 19 and the upper end surface of the lower ring seat 13 are both provided with positioning grooves 26 adapted to the lower ear seat 30 or the upper ear seat 27. A round through hole is provided at the upper end of the lower ear seat 30, and an oblong through hole 28 is provided at the lower end of the upper ear seat 27. Two groups of pins 29 are inserted at one end of the clamping jaw 15. The clamping jaw 15 is rotatably connected to the lower ear seat 30 through one of the pins 29 passing through the round through hole, and the clamping jaw 15 is rotatably connected to the upper ear seat 27 through the other pin 29 passing through the oblong through hole 28.

[0038] When the cylinder 17 is started, its upper and lower ends will work simultaneously, and the synchronous movement of the upper ring seat 19 and the pressure ring 14 will be controlled by its telescopic movement. The rise of the upper ring seat 19 will trigger the contraction of the clamping jaws 15 through the linkage assembly 25. When they contract and approach the overflow shield 16, the bag mouth of the packaging bag will be firmly clamped. The overflow shield 16 can effectively prevent the silicon carbide micro powder from overflowing or splashing from the bag mouth, and keep the working environment clean and safe. The contraction of the clamping jaws 15 is not only to clamp the bag mouth of the packaging bag, but also to form a close fit with the overflow shield 16, ensuring the complete closure of the bag mouth of the packaging bag, and further preventing the spillage of the material. At the same time, the lower output end of the cylinder 17 pushes the pressure ring 14 close to the upper end surface of the overflow shield 16, further compressing the bag mouth of the packaging bag, and forming a double fixation with the clamping action of the clamping jaws 15. This double fixation mechanism greatly improves the stability and safety of the packaging bag during the discharge process.

[0039] The lower end surface of the pressure ring 14, the upper end surface of the overflow cover 16, the side of the clamping jaws 15 facing the overflow cover 16, and the outer side wall of the overflow cover 16 are all provided with anti-slip grooves to increase the friction between the packaging bag and the packaging bag, improve the stability of the clamping, and help prevent material leakage caused by sliding or falling of the packaging bag during the bagging process.

[0040] According to the embodiments of the present invention as described above, these embodiments do not describe all the details in detail, nor do they limit the invention to specific embodiments. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can make good use of the present invention and the modified use based on the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A silicon carbide micropowder screening device, comprising a frame (1) and a rocking screen, the rocking screen comprising a vibrating seat (2) arranged on the frame (1) and a screen box (3) mounted on the vibrating seat (2), the screen box (3) comprising, from top to bottom, a snap-fitting cover (31), a screen frame (4) and a bottom frame (32), a discharging cylinder (6) being arranged on one side of the screen frame (4), and a feeding cylinder (5) being arranged on the top of the cover (31); characterized in that: A support frame is provided on one side of the frame body (1), and a discharge mechanism (8) corresponding to the discharge barrel (6) is fixedly mounted on the support frame. The discharge mechanism (8) comprises a discharge pipe (11), a lower ring seat (13), a clamping claw (15) and an upper ring seat (19). The upper ring seat (19) and the lower ring seat (13) are arranged up and down. The discharge pipe (11) is fixedly connected to the upper ring seat (19). The upper end of the discharge pipe (11) is fixedly connected to the discharge barrel (6) via a bellows (7). The lower end of the discharge pipe (11) is passed through the bellows (7) in sequence. The lower ring seat (13) is connected to an anti-overflow cover (16) at the bottom of the lower ring seat (13); the lower end of the discharge pipe (11) protrudes from the lower end surface of the anti-overflow cover (16); the clamping jaws (15) are provided in multiple groups and are distributed around the anti-overflow cover (16); the clamping jaws (15) are respectively connected to the lower ring seat (13) and the upper ring seat (19) through a linkage assembly (25); support seats (18) mounted on a support frame are provided on both sides of the lower ring seat (13); and a cylinder is provided on one side of the support seat (18). (17), the output end of the cylinder 1 (17) is fixed to the lower end surface of the upper ring seat (19); the linkage assembly (25) includes an upper ear seat (27) fixedly mounted on the lower end surface of the upper ring seat (19) and a lower ear seat (30) fixedly mounted on the upper end surface of the lower ring seat (13), the upper end of the lower ear seat (30) is provided with a round through hole, the lower end of the upper ear seat (27) is provided with an oblong through hole (28), one end of the clamping jaw (15) is inserted with two sets of latches (29), and the clamping jaw (15) is inserted through one of the round through holes. The latch (29) is rotatably connected to the lower ear seat (30), and the clamping claw (15) is rotatably connected to the upper ear seat (27) via another latch (29) passing through the oblong through hole (28); the discharge mechanism (8) further comprises a pressure ring (14), the pressure ring (14) being located between the lower ring seat (13) and the overflow cover (16); the cylinder one (17) is a double-headed cylinder, the upper output end of the cylinder one (17) is fixed to the lower end face of the upper ring seat (19), and the lower output end of the cylinder one (17) is fixed to the upper end face of the pressure ring (14).

2. The silicon carbide powder screening device according to claim 1, characterized in that: Two groups of symmetrical cylinders (35) are mounted on the skirt (34) of the bottom frame (32); the output end of the cylinder (35) is connected to a push rod (38); the rod body of the push rod (38) is provided with a scale line for recording the position height; one end of the push rod (38) passes through the skirt (34) of the sieve frame (4) and is fixed to the skirt (34) of the cover (31); a sliding sleeve (36) is sleeved on the push rod (38); the sliding sleeve (36) is located below the skirt (34) of the sieve frame (4); a threaded hole is provided on one side of the sliding sleeve (36); a locking bolt (37) is connected to the threaded hole.

3. The silicon carbide powder screening device according to claim 1, characterized in that: The lower end surface of the upper ring seat (19) and the upper end surface of the lower ring seat (13) are both provided with a positioning groove (26) adapted to the lower ear seat (30) or the upper ear seat (27).

4. The silicon carbide powder screening device according to claim 3, characterized in that: The lower end surface of the pressure ring (14), the upper end surface of the overflow prevention cover (16), the side of the clamping claw (15) facing the overflow prevention cover (16), and the outer side wall of the overflow prevention cover (16) are all provided with anti-slip patterns.

5. The silicon carbide powder screening device according to claim 4, characterized in that: The upper end surface of the pressure ring (14) is fixed with a plurality of guide rods (22) which are distributed around and pass through the lower ring seat (13); the upper end surface of the lower ring seat (13) is fixed with a plurality of guide rods (20) which are distributed around and pass through the upper ring seat (19); and the upper ring seat (19) is fixed with a plurality of guide sleeves (21) which are adapted to the guide rods (20).

6. The silicon carbide powder screening device according to claim 1, characterized in that: A plurality of sets of circumferentially distributed guide shafts (33) are fixed to the skirt (34) of the bottom frame (32), and one end of the guide shaft (33) passes through the skirt (34) of the screen frame (4) and the skirt (34) of the cover (31).

7. The silicon carbide powder screening device according to claim 1, characterized in that: An operating platform (9) is provided on the other side of the frame (1).

8. The silicon carbide powder screening device according to claim 7, characterized in that: A ladder (10) is provided on one side of the operating platform (9).

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