Sand screening device for sand blasting machine for roller

Abstract

The utility model discloses a sand screening device for a sand blasting machine for a roller, and belongs to the technical field of screening machines. Comprising a base, a supporting frame is arranged at the top of the base, a connecting column is arranged on the inner side of the supporting frame, two sets of sand screening assemblies are slidably connected to the outer wall of the connecting column through a sliding sleeve, and a driving assembly is arranged at the top of the base; the output end of the driving assembly is provided with a crank connecting rod assembly used for driving the sand screening assembly to reciprocate left and right along the connecting column to achieve the sand screening effect. According to the sand screening device, the two sets of sand screening assemblies are arranged, large sand and stones and fine sand or chippings in the sand and stones can be screened, the screen cloth is obliquely arranged in the connecting frame, the discharging groove matched with the screen cloth is formed in the connecting frame, and therefore the screened sand and stones can be discharged in time, and the sand screening efficiency is improved. The influence on the screening operation due to accumulation on the screen is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of screening machines, in particular to a sand screening device for a sandblasting machine used for rolls. Background Technique

[0002] The sandblasting machine belongs to the category of air conveying machinery. It uses compressed air in a pipeline to transport powdery granular materials from one place to another. During the process of converting kinetic energy into potential energy, the high-speed moving sand grains scour the surface of the object to improve the surface quality of the object. In the operation process of the sandblasting machine, the sand screening device is an indispensable part. It is mainly used to screen the sand material, remove impurities and non-conforming particles in it to ensure the smooth progress of the sandblasting operation.

[0003] After retrieval, the utility model patent with the publication number of CN213223222U discloses a sand screening device for a sandblasting machine, including a material bin. A rocker is rotatably connected inside the material bin. A screening box is rotatably connected between the rockers. Positioning plates are symmetrically arranged at the upper end of the material bin. A driving rod is rotatably connected between the positioning plates. An eccentric roller is fixedly connected to the surface of the driving rod. The screening box is connected to the surface of the eccentric roller. One end of the driving rod is fixed with a first belt pulley, and a belt is connected to the surface of the first belt pulley. When the device is in use, the eccentric roller is driven to rotate through the linkage of the motor. The screening box is pushed to swing left and right by the eccentric roller to screen the sand in the screening box. The non-standard fine sand falls downward into the inner side of the material bin, and the sand that meets the standard remains on the surface of the screening box. Then, the discharge door on the left side of the screening box is opened, and the screening box is driven to swing through the linkage of the motor, so that the sand that meets the standard will be discharged from the left side of the screening box, thus facilitating the screening of the sand. Although this device can achieve the sand screening effect to a certain extent, it is not convenient to timely discharge the screened sand and gravel during use, which is easy to cause the screening box to be blocked. Secondly, it is not convenient to screen the larger-grained sand and gravel, resulting in affecting the sandblasting treatment effect of the pressure roller. Therefore, this device still has certain deficiencies. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems in the prior art, and a sand screening device for a sandblasting machine used for rolls is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A sand screening device for a sandblasting machine used for rolls, comprising a base. A support frame is provided at the top of the base. A connecting column is provided inside the support frame. A sand screening assembly is slidably connected to the outer wall of the connecting column through a sliding sleeve. Two groups of the sand screening assemblies are arranged along the vertical direction of the support frame. Among them, the sand screening assembly includes a connecting frame slidably connected to the connecting column through a sliding sleeve, and a screen mesh connected inside the connecting frame and extending through the connecting frame and outward. A driving assembly is provided at the top of the base, and a crank-link assembly for driving the sand screening assembly to reciprocate left and right along the connecting column to achieve the sand screening effect is provided at the output end of the driving assembly.

[0007] As a preferred technical solution of the present application, the screen mesh is inclined and arranged inside the connecting frame, and a discharge groove matching the screen mesh is provided at the side of the connecting frame.

[0008] As a preferred technical solution of the present application, the inclination angles of the two groups of screen meshes are opposite.

[0009] As a preferred technical solution of the present application, the mesh number of the lower screen mesh is greater than that of the upper screen mesh.

[0010] As a preferred technical solution of the present application, a feeding hopper is provided on the inner wall of the support frame, and the feeding hopper is located below the upper sand screening assembly and above the lower sand screening assembly.

[0011] As a preferred technical solution of the present application, the driving assembly includes a driving motor provided at the top of the base and a transmission belt provided between the driving motor and the crank-link assembly through pulleys.

[0012] As a preferred technical solution of the present application, the crank-link assembly includes a crank member rotatably connected between the base and the support frame and a connecting rod movably connected between the crank member and the connecting frame. Among them, the crank member is connected to the output end of the driving motor through the transmission belt. One end of the connecting rod is rotatably connected to the crank member through a connecting sleeve, and the other end is rotatably connected to the connecting frame through a connecting seat.

[0013] As a preferred technical solution of the present application, adjustable support feet are provided on the base.

[0014] Compared with the prior art, the present utility model provides a sand screening device for a sandblasting machine used for rolls, having the following beneficial effects:

[0015] 1. For this sand screening device for a sandblasting machine used for rolls, through the two groups of sand screening assemblies provided, it can respectively screen the larger particles of sand and stones and the fine sand or debris in the sand and stones, improving the quality of the sand and stones and the sandblasting treatment effect of the sandblasting machine;

[0016] 2. The sand screening device for the sandblasting machine used for the roll can timely discharge the screened sand and gravel because the screen is inclined and arranged inside the connecting frame, and a discharge groove matching with the screen is arranged on the connecting frame, thus avoiding its accumulation on the screen and affecting the screening operation.

[0017] 3. The sand screening device for the sandblasting machine used for the roll has opposite inclination angles between the two screens, so the discharge directions of the two groups of screens are opposite, which is more convenient for collecting the screened sand and gravel.

[0018] 4. The sand screening device for the sandblasting machine used for the roll can drive the two groups of sand screening components to reciprocate and shake alternately along the connecting column through the arranged driving component and crank connecting rod component, improving the screening effect of the sand and gravel. Description of the Drawings

[0019] Figure 1 is the structural schematic diagram of the present utility model Figure 1 ;

[0020] Figure 2 is the structural schematic diagram of the present utility model Figure 2 ;

[0021] Figure 3 is the front view of the present utility model;

[0022] Figure 4 is the side view of the present utility model.

[0023] In the figure:

[0024] 100, base; 101, support frame; 102, connecting column; 103, sliding sleeve; 200, sand screening component; 201, connecting frame; 202, screen; 203, discharge groove; 204, guide hopper; 300, driving component; 301, driving motor; 302, transmission belt; 400, crank connecting rod component; 401, crank part; 402, connecting rod; 403, connecting sleeve; 404, connecting seat; 500, support foot pad. Detailed Embodiment

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0026] Refer to Figures 1-4, A sand screening device for a sandblasting machine used for rolls, including a base 100. A support frame 101 is arranged on the top of the base 100. A connecting column 102 is arranged inside the support frame 101. A sand screening assembly 200 is slidably connected to the outer wall of the connecting column 102 through a sliding sleeve 103. Two groups of sand screening assemblies 200 are arranged along the vertical direction of the support frame 101. Among them, the sand screening assembly 200 includes a connecting frame 201 slidably connected to the connecting column 102 through a sliding sleeve 103, and a screen mesh 202 connected inside the connecting frame 201 and passing through the connecting frame 201 and extending outward. A driving assembly 300 is arranged on the top of the base 100. The output end of the driving assembly 300 is provided with a crank - connecting rod assembly 400 for driving the sand screening assembly 200 to reciprocate left and right along the connecting column 102 to achieve the sand screening effect. When in use, the sand and stones to be screened are placed on the upper group of sand screening assemblies 200. The driving assembly 300 is started to drive the crank - connecting rod assembly 400 connected to its output end to rotate, driving the connected sand screening assembly 200 to reciprocate along the connecting column 102, and screening the sand and stones inside it. Since two groups of sand screening assemblies 200 are provided, and the mesh number of the lower screen mesh 202 is greater than that of the upper screen mesh 202, therefore, the upper group of sand screening assemblies 200 can screen out the larger - sized sand and stones, and the lower group of sand screening assemblies 200 can screen out the fine sand and debris, improving the sand screening effect.

[0027] Refer to Figures 1-2 , The screen mesh 202 is inclinedly arranged inside the connecting frame 201, and a discharge chute 203 matched with the screen mesh 202 is arranged on the side of the connecting frame 201. When in use, since the screen mesh 202 is inclinedly arranged and the connecting frame 201 is provided with a discharge chute 203 matched with it, the screened sand and stones will be discharged in time through the discharge chute 203, avoiding the situation of its accumulation on the screen mesh 202 and affecting the screening.

[0028] Refer to Figures 1-3 , In order to facilitate the collection of the screened sand and stones, the inclination angles of the two groups of screen meshes 202 are opposite, so that the screened sand and stones are discharged from the left and right sides respectively, facilitating the collection of them using a collection box. It should be noted that collection boxes are arranged at both sides and the bottom of the sand screening assembly 200 of the sand screening device to collect the screened materials, which are not shown in this application.

[0029] Refer to Figures 2-4 , A material guiding hopper 204 is arranged on the inner wall of the support frame 101, and the material guiding hopper 204 is located below the upper sand screening assembly 200 and above the lower sand screening assembly 200. By arranging the material guiding hopper 204, the sand and stones screened by the upper sand screening assembly 200 can fall onto the lower group of sand screening assemblies 200.

[0030] Refer to Figure 1 and Figure 4, the driving component 300 includes a driving motor 301 disposed on the top of the base 100 and a transmission belt 302 disposed between the driving motor 301 and the crank - connecting rod assembly 400 through pulleys.

[0031] The crank - connecting rod assembly 400 includes a crank member 401 rotatably connected between the base 100 and the support frame 101 and a connecting rod 402 movably connected between the crank member 401 and the connecting frame 201. Among them, the crank member 401 is connected to the output end of the driving motor 301 through the transmission belt 302. One end of the connecting rod 402 is rotatably connected to the crank member 401 through a connecting sleeve 403, and the other end is rotatably connected to the connecting frame 201 through a connecting seat 404. During use, the driving motor 301 is started to drive the transmission belt 302 connected to its output end to rotate, and then drive the connected crank member 401 to rotate. With the cooperation of the provided connecting rod 402, the connecting frame 201 connected thereto can be driven to reciprocate along the connecting column 102, achieving the screening effect of the sand and gravel.

[0032] Refer to Figures 1-4 , adjustable support feet 500 are provided on the base 100.

[0033] Specifically, when this sand - screening device for the roll - type sandblasting machine is in use: the sand and gravel to be screened are placed on the upper group of sand - screening components 200. The driving motor 301 is started to drive the transmission belt 302 connected to its output end to rotate, and then drive the connected crank member 401 to rotate. With the cooperation of the provided connecting rod 402, the connecting frame 201 connected thereto can be driven to reciprocate along the connecting column 102, achieving the screening effect of the sand and gravel. There are two groups of sand - screening components 200. The mesh number of the lower screen 202 is greater than that of the upper screen 202. Therefore, the upper group of sand - screening components 200 can screen the sand and gravel with larger particles, and the lower group of sand - screening components 200 can screen the fine sand and debris, improving the screening effect of the sand and gravel. The inclination angles of the two groups of screens 202 are opposite, so that the screened sand and gravel are discharged from the left and right sides respectively, and then collected by a collection box.

[0034] The above - mentioned is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A sand screening device for a sandblasting machine used for rolls, comprising a base (100), characterized in that, A support frame (101) is provided at the top of the base (100). A connecting column (102) is provided inside the support frame (101). A sand screening assembly (200) is slidably connected to the outer wall of the connecting column (102) through a sliding sleeve (103). Two groups of the sand screening assemblies (200) are arranged vertically along the support frame (101). Among them, the sand screening assembly (200) includes a connecting frame (201) slidably connected to the connecting column (102) through the sliding sleeve (103), and a screen mesh (202) connected inside the connecting frame (201) and passing through the connecting frame (201) and extending outwards. A driving assembly (300) is provided at the top of the base (100). A crank and connecting rod assembly (400) is provided at the output end of the driving assembly (300) for driving the sand screening assembly (200) to reciprocate left and right along the connecting column (102) to achieve the sand screening effect.

2. The sand screening device for a sandblasting machine used for rolls according to claim 1, characterized in that, The screen mesh (202) is inclined and arranged inside the connecting frame (201), and a discharge chute (203) matching the screen mesh (202) is provided at the side of the connecting frame (201).

3. The sand screening device for a sandblasting machine used for rolls according to claim 1, characterized in that, The inclination angles of the two groups of screen meshes (202) are opposite.

4. The sand screening device for a sandblasting machine used for rolls according to claim 1, characterized in that, The mesh number of the lower screen mesh (202) is greater than that of the upper screen mesh (202).

5. The sand screening device for a sandblasting machine used for rolls according to claim 1, characterized in that, A material guiding hopper (204) is provided on the inner wall of the support frame (101), and the material guiding hopper (204) is located below the upper sand screening assembly (200) and above the lower sand screening assembly (200).

6. The sand screening device for a sandblasting machine used for rolls according to claim 1, characterized in that, The driving assembly (300) includes a driving motor (301) provided at the top of the base (100) and a transmission belt (302) provided between the driving motor (301) and the crank and connecting rod assembly (400) through belt pulleys.

7. The sand screening device for a sandblasting machine for rolls according to claim 6, characterized in that, The crank and connecting rod assembly (400) includes a crank member (401) rotatably connected between the base (100) and the support frame (101) and a connecting rod (402) movably connected between the crank member (401) and the connecting frame (201). Among them, the crank member (401) is connected to the output end of the driving motor (301) through the transmission belt (302). One end of the connecting rod (402) is rotatably connected to the crank member (401) through a connecting sleeve (403), and the other end is rotatably connected to the connecting frame (201) through a connecting seat (404).

8. The sand screening device for a sandblasting machine used for rolls according to claim 1, characterized in that, Adjustable support feet (500) are provided on the base (100).

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