Screening equipment for calcium carbonate powder

Abstract

The utility model discloses calcium carbonate powder screening equipment, and particularly relates to the technical field of calcium carbonate powder processing, the calcium carbonate powder screening equipment comprises a support, a rotatable screen drum is obliquely arranged at the top of the support, a supporting mechanism is arranged at the bottom of the support, and the supporting mechanism comprises a supporting plate fixed at the bottom of the support. A second optical axis is fixed to the bottom of one end of the supporting plate, a tension spring is arranged below the second optical axis, a first optical axis is arranged at the bottom end of the tension spring, balancing weights are fixed to the two ends of the first optical axis, and a second spindle seat is arranged at the end, away from the second optical axis, of the supporting plate; according to the calcium carbonate powder screening device, the screen drum and the supporting pieces at the bottom of the screen drum are supported through the supporting mechanism, the screen drum can be driven to incline, the inclination direction of the screen drum is changed, and therefore calcium carbonate powder can move in the screen drum in a reciprocating mode, repeated screening of the calcium carbonate powder is facilitated, and residues of the calcium carbonate powder in the screen drum are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium carbonate powder processing, and particularly relates to a screening device for calcium carbonate powder. Background Art

[0002] In modern industrial manufacturing, calcium carbonate powder is widely used in many fields such as plastics, rubber, coatings, papermaking, medicine, and food. As an important inorganic filler, calcium carbonate powder can not only reduce production costs but also improve the hardness, wear resistance, and chemical stability of products. However, different application fields have strict requirements for the particle size distribution of calcium carbonate powder. Therefore, efficient and accurate screening of calcium carbonate powder is particularly important.

[0003] The existing calcium carbonate powder screening devices mainly use sieve plates for screening. The distribution forms of the sieve plates are vertical distribution and drum type. The sizes of the sieve holes on the drum-type sieve plate gradually increase from one end to the other end. The drum-type sieve plate is usually inclined. The calcium carbonate powder smaller than the sieve holes falls through the sieve holes, and the calcium carbonate powder moves from one end to the other end of the drum-type sieve plate;

[0004] However, there are still deficiencies in its actual use. During the process of screening calcium carbonate powder by the drum-type sieve plate, it is in a rotating state. Some calcium carbonate powder will not accurately fall through the sieve holes. As a result, after the calcium carbonate powder is screened once from one end to the other end of the drum-type sieve plate, there are still screening leftovers, which is not conducive to the accurate screening of calcium carbonate powder. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a screening device for calcium carbonate powder to solve the above-mentioned deficiencies in the technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A screening device for calcium carbonate powder includes a bracket. A rotatable sieve drum is inclinedly arranged at the top of the bracket. A support mechanism is arranged at the bottom of the bracket. The support mechanism includes a support plate fixed to the bottom of the bracket. A second optical axis is fixed to the bottom of one end of the support plate. A tension spring is arranged below the second optical axis. A first optical axis is arranged at the bottom end of the tension spring. Counterweights are fixed to both ends of the first optical axis. A main shaft seat two is arranged at one end of the support plate away from the second optical axis. A shaft body is arranged on the main shaft seat two. A secondary shaft seat two is arranged at the end of the shaft body. A telescopic device is arranged at the bottom of the secondary shaft seat two. A main shaft seat one is also arranged at the bottom of the support plate near the side of the second optical axis. A rotating shaft is arranged at the shaft hole position of the main shaft seat one. A secondary shaft seat one is arranged at the end of the rotating shaft. A fixing plate is arranged at the bottom of the secondary shaft seat one.

[0008] Preferably, a support member is fixed between the support frame and the sieve cylinder. The support member includes a support base fixed to the top of the support frame. A fixing frame is provided on the top of the support base. A feed hopper is fixed to the top of the fixing frame. A bearing block is also provided at the bottom of the support base. A transmission shaft is provided on the bearing block. Driving wheels are provided at both ends of the transmission shaft.

[0009] Preferably, rolling rings are provided at both ends of the sieve cylinder. A positioning ring is provided at the end of the rolling ring. The driving wheel is in contact with the outer wall of the rolling ring. When the driving wheel rotates, the rolling ring rotates following the driving wheel.

[0010] Preferably, a servo motor is further provided on one side of the top of the support base. The end of the output shaft of the servo motor is connected to a gear box. The end of the output shaft of the gear box is connected to the end of the transmission shaft.

[0011] Preferably, a bottom box is provided below the sieve cylinder. A collection box is provided at one end of the sieve cylinder.

[0012] Preferably, an air bag is provided at one end of the support plate close to the telescopic device. A base is provided at the bottom of the counterweight.

[0013] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0014] Through the provided support mechanism, the support mechanism supports the sieve cylinder and the support member at the bottom of the sieve cylinder, and can drive the sieve cylinder to tilt, so that the sieve cylinder changes the tilting direction, thereby enabling the calcium carbonate powder to move back and forth inside the sieve cylinder, which is beneficial to performing multiple screenings on the calcium carbonate powder, thereby reducing the residue of calcium carbonate powder in the sieve cylinder, enabling all the calcium carbonate powder materials put into the sieve cylinder to be effectively screened, and being conducive to improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 It is a three-dimensional view of the sieve cylinder and the support member of the present utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the support member of the present utility model;

[0019] Figure 4This is a schematic structural diagram of the support mechanism of the present utility model.

[0020] Explanation of reference numerals in the drawings:

[0021] 1. Collection box; 2. Sieve cylinder; 3. Base; 4. Support plate; 5. Bracket; 6. Servo motor; 7. Gearbox; 8. Feed hopper; 9. Bottom box; 10. Rolling ring; 11. Driving wheel; 12. Bearing seat; 13. Transmission shaft; 14. Support seat; 15. Positioning ring; 16. Fixed frame; 17. Counterweight; 18. First optical axis; 19. Tension spring; 20. Second optical axis; 21. Rotating shaft; 22. First main shaft seat; 23. First auxiliary shaft seat; 24. Fixed plate; 25. Second main shaft seat; 26. Shaft body; 27. Second auxiliary shaft seat; 28. Telescopic device; 29. Airbag. Specific embodiments

[0022] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below with reference to the drawings.

[0023] The present utility model provides a Figures 1-4 calcium carbonate powder screening device as shown, including a bracket 5. A rotatable sieve cylinder 2 is inclinedly arranged at the top of the bracket 5. A support mechanism is arranged at the bottom of the bracket 5. The support mechanism includes a support plate 4 fixed to the bottom of the bracket 5. A second optical axis 20 is fixed to the bottom of one end of the support plate 4. A tension spring 19 is arranged below the second optical axis 20. A first optical axis 18 is arranged at the bottom end of the tension spring 19. Counterweights 17 are fixed to both ends of the first optical axis 18. A second main shaft seat 25 is arranged at the end of the support plate 4 away from the second optical axis 20. A shaft body 26 is arranged on the second main shaft seat 25. An end of the shaft body 26 is provided with a second auxiliary shaft seat 27. A telescopic device 28 is arranged at the bottom of the second auxiliary shaft seat 27. A first main shaft seat 22 is further arranged on the bottom of the support plate 4 near the second optical axis 20. A rotating shaft 21 is arranged at the shaft hole position of the first main shaft seat 22. An end of the rotating shaft 21 is provided with a first auxiliary shaft seat 23. A fixed plate 24 is arranged at the bottom of the first auxiliary shaft seat 23;

[0024] In this embodiment, specifically, the telescopic device 28 can adopt a cylinder or an oil cylinder. The cylinder is connected to an external air pump through a conduit, and the oil cylinder is connected to an external oil pump through an oil pipe, which is not shown in the figure. The working principles of the cylinder and the oil cylinder are prior art in this part and will not be elaborated here. After starting the telescopic device 28, when the telescopic device 28 shortens, the telescopic device 28 pulls the second auxiliary shaft seat 27 to move downward. The second auxiliary shaft seat 27 drives the shaft body 26 and the second main shaft seat 25 to move downward. The second main shaft seat 25 drives one end of the support plate 4 to move downward. At the same time, the bottom of the support plate 4 rotates around the rotating shaft 21. At the same time, the other end of the support plate 4 moves upward and lifts. The second optical axis 20 drives the tension spring 19, and the tension spring 19 is stretched. At this time, the inclination direction of the sieve cylinder 2 is opposite to the original inclination direction;

[0025] During the elongation of the telescopic device 28, the telescopic end of the telescopic device 28 pushes the support plate 4 upward. One end of the support plate 4 moves upward and the other end moves downward. The sieve drum 2 gradually returns to its original state. At the same time, the calcium carbonate powder inside the sieve drum 2 reciprocates in the sieve drum 2, so that screening can be carried out back and forth.

[0026] As Figures 1-4 shown, specifically, a support member is fixed between the support 5 and the sieve drum 2. The support member includes a support seat 14 fixed to the top of the support 5. A fixing frame 16 is provided on the top of the support seat 14. A feed hopper 8 is fixed to the top of the fixing frame 16. A bearing seat 12 is further provided at the bottom of the support seat 14. A transmission shaft 13 is provided on the bearing seat 12. Driving wheels 11 are provided at both ends of the transmission shaft 13. The transmission shaft 13 and the driving wheels 11 are fixedly connected. The driving wheels 11 rotate following the transmission shaft 13. Rolling rings 10 are provided at both ends of the sieve drum 2. A positioning ring 15 is provided at the end of the rolling ring 10. There is a groove between the positioning ring 15 and the rolling ring 10. The driving wheels 11 are located in the groove and are in contact with the outer wall of the rolling ring 10. When the driving wheels 11 rotate, the rolling ring 10 rotates following the driving wheels 11. In this embodiment, specifically, the calcium carbonate powder is poured on the feed hopper 8. The calcium carbonate powder slides downward through the feed hopper 8 into the sieve drum 2. At the same time, while the driving wheels 11 rotate, they drive the rolling ring 10 to rotate. The rolling ring 10 drives the sieve drum 2 to rotate. When the sieve drum 2 rotates, the calcium carbonate powder moves in the sieve drum 2 in the inclined direction and passes through the sieve holes on the sieve drum 2, thus automatically completing the screening.

[0027] As Figures 1-3 shown, a servo motor 6 is further provided on one side of the top of the support seat 14. The end of the output shaft of the servo motor 6 is connected to a gear box 7. The end of the output shaft of the gear box 7 is connected to the end of the transmission shaft 13. When the servo motor 6 is started, the output shaft of the servo motor 6 drives the reduction gear structure inside the gear box 7 to rotate. Finally, the mechanical transmission is transmitted from the output shaft of the gear box 7 and drives the transmission shaft 13 to rotate.

[0028] As Figure 1 shown, a bottom box 9 is provided below the sieve drum 2. A collection box 1 is provided at one end of the sieve drum 2. Specifically, the bottom box 9 is of a cuboid structure. A rectangular groove is opened at the top of the bottom box 9. During the rotation of the sieve drum 2, after the calcium carbonate powder is screened by the sieve drum 2, calcium carbonate powder of different finenesses falls at different positions in the rectangular groove, so that after the user pulls out the bottom box 9 from below the sieve drum 2, the calcium carbonate powder material in the rectangular groove can be taken out classified according to the fineness.

[0029] As Figure 1 and Figure 4As shown, one end of the support plate 4 is provided with an airbag 29 near one side of the telescopic device 28, and a base 3 is provided at the bottom of the counterweight 17. Specifically, the telescopic device 28 pulls one end of the support plate 4, and the support plate 4 rotates around the rotating shaft 21. The feed hopper 8 of the sieve drum 2 begins to tilt downward. During the downward tilt, the bottom of one end of the support plate 4 contacts the top of the airbag 29, and the airbag 29 is flattened downward, playing a buffering role at the same time.

[0030] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A screening device for calcium carbonate powder, comprising a bracket (5), characterized in that: The top of the bracket (5) is inclined and provided with a rotatable screening cylinder (2). The bottom of the bracket (5) is provided with a support mechanism. The support mechanism includes a support plate (4) fixed to the bottom of the bracket (5). One end of the bottom of the support plate (4) is fixedly provided with a second optical axis (20). A tension spring (19) is arranged below the second optical axis (20). The bottom end of the tension spring (19) is provided with a first optical axis (18). Counterweight blocks (17) are fixed to both ends of the first optical axis (18). One end of the support plate (4) away from the second optical axis (20) is provided with a second main shaft seat (25). A shaft body (26) is arranged on the second main shaft seat (25). The end of the shaft body (26) is provided with a second auxiliary shaft seat (27). A telescopic device (28) is arranged at the bottom of the second auxiliary shaft seat (27). On one side of the bottom of the support plate (4) close to the second optical axis (20), a first main shaft seat (22) is further arranged. A rotating shaft (21) is arranged at the shaft hole position of the first main shaft seat (22). The end of the rotating shaft (21) is provided with a first auxiliary shaft seat (23). A fixing plate (24) is arranged at the bottom of the first auxiliary shaft seat (23).

2. The sieving device for calcium carbonate powder according to claim 1, wherein: A support member is fixed between the bracket (5) and the screening cylinder (2). The support member includes a support seat (14) fixed to the top of the bracket (5). A fixing frame (16) is arranged on the top of the support seat (14). A feed hopper (8) is fixed to the top of the fixing frame (16). A bearing seat (12) is further arranged at the bottom of the support seat (14). A transmission shaft (13) is arranged on the bearing seat (12). Driving wheels (11) are arranged at both ends of the transmission shaft (13).

3. The sieving device for calcium carbonate powder according to claim 2, characterized in that: Rolling rings (10) are arranged at both ends of the screening cylinder (2). Positioning rings (15) are arranged at the ends of the rolling rings (10). The driving wheels (11) are in contact with the outer walls of the rolling rings (10). When the driving wheels (11) rotate, the rolling rings (10) rotate following the driving wheels (11).

4. The screening device for calcium carbonate powder according to claim 2, characterized in that: A servo motor (6) is further arranged on one side of the top of the support seat (14). The end of the output shaft of the servo motor (6) is connected to a gearbox (7). The end of the output shaft of the gearbox (7) is connected to the end of the transmission shaft (13).

5. The sieving device for calcium carbonate powder according to claim 1, characterized in that: A bottom box (9) is arranged below the screening cylinder (2). A collection box (1) is arranged at one end of the screening cylinder (2).

6. The sieving device for calcium carbonate powder according to claim 1, wherein: An airbag (29) is arranged on one side of one end of the support plate (4) close to the telescopic device (28). A base (3) is arranged at the bottom of the counterweight block (17).

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