Abrasive screening device of sand blasting machine

Abstract

The utility model relates to the technical field of abrasive material screening, and discloses a sand blasting machine abrasive material screening device which comprises a screening support, a screening material barrel is installed at the top of the screening support and further comprises a first filter screen and a second filter screen, a rotating shaft is arranged in the center of the interior of the screening material barrel, and a disturbance mechanism is arranged on the rotating shaft. The disturbance mechanism comprises a material distributing rod and a material mixing ball fixed to the end of the material distributing rod. The screening barrel is obliquely installed in the screening support, along with rotation of the screening barrel, grinding materials in the screening barrel can be driven to correspondingly move, the grinding materials are rapidly separated under the action of centrifugal force, the screening efficiency is improved, the hole diameter of the first filter screen and the hole diameter of the second filter screen are set from dense to sparse, classified filtering can be conducted, and the screening efficiency is improved. By means of the structure, grinding materials with different particle sizes can be effectively separated, the screening effect is optimized, through a disturbance mechanism composed of the material distributing rods and the material mixing balls, grinding material screening can be promoted, the grinding materials are prevented from being stacked and agglomerated, and the recycling rate of the grinding materials is increased.

Description

Technical Field

[0001] This application relates to the technical field of abrasive screening, and particularly to an abrasive screening device for a sandblasting machine. Background Art

[0002] In the sandblasting process, the purity of the abrasive is crucial for ensuring product quality. At present, the existing abrasive screening devices for sandblasting machines on the market mainly rely on manual sand screening or simple mechanical screening. These existing technical solutions have obvious disadvantages: on the one hand, manual sand screening is not only inefficient, but also prone to incomplete screening due to improper operation or fatigue, which in turn affects the sandblasting effect and the stability of product quality; on the other hand, although traditional mechanical screening equipment improves the screening efficiency to a certain extent, it often has a complex structure, high maintenance costs, and unsatisfactory screening effects for fine particles, and there are still problems with screening residues.

[0003] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Utility Model

[0004] In order to solve the problems that on the one hand, manual sand screening is not only inefficient, but also prone to incomplete screening due to improper operation or fatigue, which in turn affects the sandblasting effect and the stability of product quality; on the other hand, although traditional mechanical screening equipment improves the screening efficiency to a certain extent, it often has a complex structure, high maintenance costs, and unsatisfactory screening effects for fine particles, and there are still problems with screening residues, this application provides an abrasive screening device for a sandblasting machine.

[0005] An abrasive screening device for a sandblasting machine provided by this application adopts the following technical solutions:

[0006] An abrasive screening device for a sandblasting machine includes a screening support. A screening hopper is installed at the top of the screening support. The screening hopper further includes a first filter screen and a second filter screen. A rotating shaft is provided at the center inside the screening hopper. A disturbing mechanism is provided on the rotating shaft. The disturbing mechanism includes a distributing rod and a mixing ball fixed to the end of the distributing rod.

[0007] Preferably, an activity opening adapted to the screening hopper is provided on the screening support. A receiving box is connected inside the screening support by bolts. The receiving box is located at the bottom of the screening hopper.

[0008] Preferably, fixing plates are symmetrically welded to the top end of the screening support. An engine is installed on the outer wall of one of the fixing plates. The output end of the engine penetrates the inner wall of the fixing plate and is in transmission connection with the rotating shaft.

[0009] Preferably, a group of fixing frames are fixedly arranged at equal intervals on the outer wall of the rotating shaft. One end of the fixing frame away from the rotating shaft is fixed to the inner wall of the screening cylinder, and a connecting rod connected to the material distributing rod is fixed between every two adjacent fixing frames.

[0010] Preferably, a feed hopper is arranged at the top of the engine. The feed end of the feed hopper extends into the screening cylinder, and a discharge hopper is arranged inside the screening cylinder at the end away from the feed hopper.

[0011] Preferably, the discharge hopper is fixed to the receiving box. Material distributing chambers are arranged on both sides inside the receiving box, and discharge pipes are arranged on the outer walls at the bottom ends of the two material distributing chambers.

[0012] In summary, the present application includes the following beneficial technical effects:

[0013] In the present application, the screening cylinder is installed in the screening bracket in an inclined shape. As the screening cylinder rotates, the abrasive inside can be driven to move accordingly, enabling the abrasive to be quickly separated under the action of centrifugal force, improving the screening efficiency. The pore sizes of the first filter screen and the second filter screen are set from dense to sparse, enabling classification filtration. Through the arrangement of the discharge hopper, the larger-particle abrasive filtered out can be discharged outward, enabling effective separation of abrasives with different particle sizes, optimizing the screening effect. Through the disturbing mechanism composed of the material distributing rod and the mixing balls, it can promote the screening of the abrasive, prevent the abrasive from accumulating and caking, and improve the recycling rate of the abrasive. Description of the Drawings

[0014] Figure 1 It is the front view of a sandblasting machine abrasive screening device according to an embodiment of the application.

[0015] Figure 2 It is the exploded view of the screening cylinder according to an embodiment of the application.

[0016] Figure 3 It is the structural schematic diagram of the screening bracket according to an embodiment of the application.

[0017] Description of the reference numerals: 1, screening bracket; 2, screening cylinder; 3, engine; 4, receiving box; 5, feed hopper; 6, discharge hopper; 7, first filter screen; 8, second filter screen; 9, rotating shaft; 10, fixing frame; 11, connecting rod; 12, material distributing rod; 13, mixing balls; 14, fixing plate; 15, movable opening; 16, material distributing chamber; 17, discharge pipe. Detailed Description of the Embodiment

[0018] The following further describes the present application in detail Figures 1-3 with reference to the attached drawings.

[0019] The embodiment of the present application discloses a sandblasting machine abrasive screening device. Refer to Figures 1-3, including a screening support 1, on the top of the screening support 1, a screening cylinder 2 is installed. The screening cylinder 2 is set in a cylindrical shape, which can better drive the abrasive to move and screen. An activity port 15 adapted to the screening cylinder 2 is opened on the screening support 1. Inside the screening support 1, a receiving box 4 is connected by bolts. The receiving box 4 is located at the bottom of the screening cylinder 2. The screened materials are discharged into the inside of the receiving box 4 for collection.

[0020] As Figure 2 shown, the screening cylinder 2 further includes a first filter screen 7 and a second filter screen 8. The pore sizes of the first filter screen 7 and the second filter screen 8 are set from dense to sparse for classification filtration. The abrasive is screened by the first filter screen 7 to remove fine debris, and then passes through the second filter screen 8 to filter larger broken materials. On both sides inside the receiving box 4, a material distribution chamber 16 is opened. On the outer walls of the bottoms of the two material distribution chambers 16, a discharge pipe 17 is provided. The discharge pipe 17 is set to face the opposite direction of the receiving box 4, which is convenient for classifying and discharging the abrasive inside.

[0021] As Figure 3 shown, on the top end of the screening support 1, fixing plates 14 are symmetrically welded. On the outer wall of one of the fixing plates 14, an engine 3 is installed. On the top of the engine 3, a feed hopper 5 is provided. The feed end of the feed hopper 5 extends into the inside of the screening cylinder 2. The feed hopper 5 does not contact the inner wall of the screening cylinder 2 and is fixed to the top end of the fixing plate 14 to ensure the structural strength. Inside the screening cylinder 2 at the end far from the feed hopper 5, a discharge hopper 6 is provided. The discharge hopper 6 is fixed to the receiving box 4 and is located at the bottom end inside the screening cylinder 2, which can discharge the screened abrasive inside to the outside.

[0022] In addition, at the center inside the screening cylinder 2, a rotating shaft 9 is provided. The output end of the engine 3 penetrates the inner wall of the fixing plate 14 and is in transmission connection with the rotating shaft 9. A group of fixing frames 10 are equidistantly fixed on the outer wall of the rotating shaft 9. One end of the fixing frame 10 far from the rotating shaft 9 is fixed to the inner wall of the screening cylinder 2. Therefore, as the rotating shaft 9 rotates, it can drive the screening cylinder 2 to rotate synchronously;

[0023] And on the rotating shaft 9, a disturbing mechanism is provided. The disturbing mechanism includes a distributing rod 12 and a mixing ball 13 fixed to the end of the distributing rod 12. A connecting rod 11 connected to the distributing rod 12 is fixed between every two adjacent fixing frames 10. As the rotating shaft 9 rotates, the distributing rod 12 will drive the mixing ball 13 to move accordingly to promote the screening of the abrasive, avoid the accumulation and caking of the abrasive, and improve the recycling rate of the abrasive.

[0024] The implementation principle of an abrasive screening device in an embodiment of this application is as follows: During use, the abrasive is put into the feed hopper 5, and the abrasive is introduced into the screening cylinder 2. At the same time, the engine 3 works to drive the rotating shaft 9 to drive the screening cylinder 2 to rotate within the movable opening 15, which can drive the internal abrasive to move circumferentially along the inner wall of the screening cylinder 2 for screening. During the rotation of the rotating shaft 9, the material distributing rod 12 and the mixing balls 13 are driven to break up the agglomerated abrasive, promoting the screening of the abrasive, avoiding the accumulation and agglomeration of the abrasive, and improving the recycling rate of the abrasive. By setting the pore sizes of the first filter screen 7 and the second filter screen 8 from dense to sparse, the fine dust and debris in the abrasive can be preliminarily filtered, and then the larger fragments are filtered through the second filter screen 8, and then discharged through the discharge hopper 6. The screened debris falls into the receiving box 4 and is discharged outward through the corresponding discharge pipe 17 for subsequent processing, enabling effective separation of abrasives with different particle sizes and optimizing the screening effect.

[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0026] Second: In the drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0028] The above are all the preferred embodiments of this application and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A sandblasting machine abrasive screening device, comprising a screening bracket (1), characterized in that: A screening barrel (2) is installed on the top of the screening bracket (1), and the screening barrel (2) also includes a filter screen 1 (7) and a filter screen 2 (8). A rotating shaft (9) is provided at the center of the interior of the screening barrel (2), and a disturbance mechanism is provided on the rotating shaft (9). The disturbance mechanism includes a distribution rod (12) and a mixing ball (13) fixed to the end of the distribution rod (12).

2. The abrasive screening device for a sandblasting machine according to claim 1, characterized in that: The screening bracket (1) is provided with a movable opening (15) adapted to the screening barrel (2), and the interior of the screening bracket (1) is connected to a material receiving box (4) via bolts, and the material receiving box (4) is located at the bottom of the screening barrel (2).

3. The abrasive screening device for a sandblasting machine according to claim 2, characterized in that: A fixing plate (14) is symmetrically welded to the top of the screening bracket (1), an engine (3) is mounted on the outer wall of one of the fixing plates (14), and an output end of the engine (3) penetrates the inner wall of the fixing plate (14) and is transmitted to the rotating shaft (9).

4. The abrasive screening device for a sandblasting machine according to claim 3, characterized in that: A group of fixing frames (10) are fixed at equal intervals on the outer wall of the rotating shaft (9); one end of the fixing frames (10) away from the rotating shaft (9) is fixed to the inner wall of the screening barrel (2); and a connecting rod (11) connected to a material distribution rod (12) is fixed between every two adjacent fixing frames (10).

5. The abrasive screening device for a sandblasting machine according to claim 4, characterized in that: A feed hopper (5) is provided on the top of the engine (3), a feed end of the feed hopper (5) extends into the interior of the screening drum (2), and a discharge hopper (6) is provided inside the end of the screening drum (2) away from the feed hopper (5).

6. The abrasive screening device for a sandblasting machine according to claim 5, characterized in that: The discharge hopper (6) is fixed on the material receiving box (4), and both sides of the inside of the material receiving box (4) are provided with material distribution chambers (16), and the outer walls of the bottom ends of the two material distribution chambers (16) are provided with outlet pipes (17).

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