Efficient grading and screening mechanism for Raymond mill

Abstract

The efficient grading and screening mechanism comprises a box body with a box door, a body is fixedly connected into the box body, a feeding hopper is fixedly inserted into the top of the box body, a discharging pipe is fixedly inserted into the bottom of the box body, sliding openings are formed in the side walls of the upper end and the lower end of the box body, and the sliding openings are communicated with the box door. Sliding rods are fixedly connected into the sliding openings, one sliding rod is slidably sleeved with a supporting plate, the other sliding rod is slidably sleeved with a traction plate, the sliding rods are sleeved with springs, and the two ends of the springs are fixedly connected with the traction plate and the inner walls of the sliding openings correspondingly. According to the multi-stage vibration screening device, due to the arrangement of the multi-stage vibration screening assembly, the powder can be subjected to filtering pretreatment and product screening functions, then the labor intensity of workers can be effectively reduced, and the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of grinding mill-related products, specifically a high-efficiency grading and screening mechanism for Raymond mills. Background Technology

[0002] The Raymond mill is a type of equipment used for fine powder processing, suitable for various industries and materials. It mainly consists of a main unit, analyzer, blower, finished product cyclone separator, micro-powder cyclone separator, and air ducts. The main unit comprises a frame, inlet volute, blades, grinding rollers, grinding ring, and casing. The Raymond mill works by using grinding rollers suspended on the main unit's frame, which revolve around a vertical axis while simultaneously rotating on their own axis. The rolling and crushing action of the grinding rollers achieves the purpose of pulverizing materials.

[0003] However, the existing Raymond mill cannot simultaneously screen and collect raw materials and incompletely ground materials, resulting in inconsistent quality and defects in the finished product. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency classifying and screening mechanism for Raymond mills to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency grading and screening mechanism for a Raymond mill, comprising a housing with a door, a main body fixedly connected inside the housing, a feed hopper fixedly inserted at the top of the housing, a discharge pipe fixedly inserted at the bottom of the housing, sliding openings on the upper and lower side walls of the housing, and sliding rods fixedly connected inside the sliding openings; a support plate slidably sleeved on one of the sliding rods, and a traction plate slidably sleeved on the other sliding rod; a spring sleeved on the sliding rod, with both ends of the spring respectively connected to the traction plate. The guide plate and the inner wall of the sliding port are fixedly connected. The traction plate and the support plate are both fixedly connected to a bearing plate at their opposite ends. The bearing plate has a sliding groove on one side. An installation plate is slidably inserted between the two bearing plates. The installation plate has a storage groove. The bottom of the storage groove has a communicating installation port. A screen is fixedly connected inside the installation port. A motor is fixedly connected to one side of the outer wall of the box. A cam is fixedly connected to the output end of the motor. Wedge plates are fixedly connected to the opposite sides of the two traction plates. The inclined surfaces of the two wedge plates are set in opposite directions.

[0006] Preferably, the inclined surfaces on both wedge plates are polished surfaces.

[0007] Preferably, the bottom of the box is fixedly connected to four support legs, which are respectively fixed at the four corners of the bottom of the box.

[0008] Preferably, the top end of the bearing plate is threaded with a threaded rod, and the top end of the mounting plate is provided with a threaded groove corresponding to the threaded rod.

[0009] Preferably, the mesh count of the upper screen is greater than that of the lower screen.

[0010] Preferably, the motor is a servo motor, model MHMD082P1U.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] This Raymond mill uses a high-efficiency grading and screening mechanism. The motor on the outer wall of the starting box drives the cam on the output shaft to rotate. As the cam rotates, its protruding end moves the wedge plate on the traction plate from its narrow side to its wide side. At this time, the wedge plate drives the traction plate to slide on the slide rod, thus stretching the spring. Simultaneously, the support plate on the other end slides on the slide rod to achieve a supporting effect. As the cam continues to rotate, the mounting plate installed in the bearing plate drives the screen to vibrate up and down. The powder is introduced through the feed hopper, first passing through the upper screen for impurity screening, then falling into the main body for grinding, and finally falling into the lower screen for large particle screening. This invention, through the setting of a multi-stage vibrating screening component, can perform powder pre-treatment and product screening functions, thereby effectively reducing the labor intensity of workers and improving product quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a high-efficiency grading and screening mechanism for a Raymond mill according to the present invention;

[0014] Figure 2 This is an enlarged view of point A of a high-efficiency classifying and screening mechanism for a Raymond mill according to the present invention.

[0015] Figure 3 This is a schematic diagram of the cam structure of a high-efficiency grading and screening mechanism for a Raymond mill according to the present invention.

[0016] In the diagram: 1. Box; 2. Body; 3. Feed hopper; 4. Discharge pipe; 5. Slide rod; 6. Support plate; 7. Traction plate; 8. Spring; 9. Bearing plate; 10. Mounting plate; 11. Screen; 12. Motor; 13. Cam; 14. Wedge plate; 15. Support leg; 16. Threaded rod. Detailed Implementation

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Please see Figure 1-3This utility model provides an embodiment of a high-efficiency grading and screening mechanism for a Raymond mill, comprising a housing 1 with a door, a body 2 fixedly connected inside the housing 1, a feed hopper 3 fixedly inserted at the top of the housing 1, a discharge pipe 4 fixedly inserted at the bottom of the housing 1, sliding openings on the upper and lower side walls of the housing 1, and sliding rods 5 fixedly connected inside the sliding openings. A support plate 6 is slidably sleeved on one sliding rod 5, and a traction plate 7 is slidably sleeved on the other sliding rod 5. A spring 8 is sleeved on the sliding rod 5, and both ends of the spring 8 are fixedly connected to the traction plate 7 and the inner wall of the sliding opening, respectively. A bearing plate 9 is fixedly connected to the opposite end of the traction plate 7 and the support plate 6. A groove is provided on one side of the bearing plate 9, and an installation plate 10 is slidably inserted between the two bearing plates 9. The installation plate 10 has a storage groove, and the bottom of the storage groove has a communicating installation port. A screen 11 is fixedly connected inside the installation port. A motor 12 is fixedly connected to the outer wall, and a cam 13 is fixedly connected to the output end of the motor 12. A wedge plate 14 is fixedly connected to one side of each of the two traction plates 7. The inclined surfaces of the two wedge plates 14 are set in opposite directions. Specifically, when the motor 12 starts, it can drive the cam 13 on the output shaft to rotate. When the cam 13 rotates, the protruding end will press the wedge plate 14 on the traction plate 7 from its narrow side to its wide side. At this time, the wedge plate 14 drives the traction plate 7 to slide on the slide rod 5, thereby stretching the spring 8. At the same time, the support plate 6 on the other end slides on the slide rod 5 to achieve the support effect. As the cam 13 rotates continuously, the mounting plate 10 installed in the bearing plate 9 drives the screen 11 to vibrate up and down. The powder is introduced through the feed hopper 3. First, it is screened for impurities through the upper screen 11, then falls into the body 2 for grinding, and then falls into the lower screen 11 to achieve the screening of large particles.

[0021] In this embodiment, the inclined surfaces on both wedge plates 14 are polished to reduce frictional resistance; four support legs 15 are fixedly connected to the bottom of the box 1, and the four support legs 15 are respectively fixed at the four corners of the bottom of the box 1 to support the box 1; a threaded rod 16 is threaded into the top of the bearing plate 9, and a threaded groove corresponding to the threaded rod 16 is provided on the top of the mounting plate 10 to facilitate the installation and removal of the mounting plate 10; the mesh count of the upper screen 11 is greater than that of the lower screen 11; the motor 12 is a servo motor, model MHMD082P1U.

[0022] Working principle: First, the motor 12 on the outer wall of the starter box 1 is started, which drives the cam 13 on the output shaft to rotate. When the cam 13 rotates, the protruding end presses the wedge plate 14 on the traction plate 7 from its narrow side to its wide side. At this time, the wedge plate 14 drives the traction plate 7 to slide on the slide rod 5, thereby stretching the spring 8. At the same time, the support plate 6 on the other end slides on the slide rod 5 to achieve the support effect. As the cam 13 rotates continuously, the mounting plate 10 installed in the bearing plate 9 drives the screen 11 to vibrate up and down. The powder is introduced through the feed hopper 3. First, it is screened for impurities through the upper screen 11, then falls into the body 2 for grinding, and then falls into the lower screen 11 to achieve the screening of large particles.

[0023] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A high-efficiency grading and screening mechanism for a Raymond mill, comprising a housing (1) with a door, characterized in that: The box (1) is fixedly connected to the body (2). The top of the box (1) is fixedly inserted with a feed hopper (3). The bottom of the box (1) is fixedly inserted with a discharge pipe (4). The upper and lower side walls of the box (1) are provided with sliding openings. The sliding openings are fixedly connected with sliding rods (5). One of the sliding rods (5) is slidably sleeved with a support plate (6). The other sliding rod (5) is slidably sleeved with a traction plate (7). The sliding rod (5) is sleeved with a spring (8). The two ends of the spring (8) are fixedly connected to the traction plate (7) and the inner wall of the sliding opening, respectively. The traction plate (7) and the support plate (6) are connected to each other. Each of the two bearing plates (9) is fixedly connected to one side of the bearing plate (9). A sliding groove is provided on one side of the bearing plate (9). An installation plate (10) is slidably inserted between the two bearing plates (9). A storage groove is provided on the installation plate (10). A connecting installation port is provided at the bottom of the storage groove. A screen (11) is fixedly connected in the installation port. A motor (12) is fixedly connected to one side of the outer wall of the box (1). A cam (13) is fixedly connected to the output end of the motor (12). A wedge plate (14) is fixedly connected to one side of each of the two traction plates (7). The inclined surfaces of the two wedge plates (14) are set opposite to each other.

2. The high-efficiency classifying and screening mechanism for a Raymond mill according to claim 1, characterized in that: Both inclined surfaces on the wedge plates (14) are polished surfaces.

3. The high-efficiency classifying and screening mechanism for a Raymond mill according to claim 1, characterized in that: The bottom of the box (1) is fixedly connected with four legs (15), and the four legs (15) are respectively fixed at the four corners of the bottom of the box (1).

4. The high-efficiency classifying and screening mechanism for a Raymond mill according to claim 1, characterized in that: The top of the bearing plate (9) is threaded with a threaded rod (16), and the top of the mounting plate (10) is provided with a threaded groove corresponding to the threaded rod (16).

5. The high-efficiency classifying and screening mechanism for a Raymond mill according to claim 1, characterized in that: The mesh count of the upper sieve (11) is greater than that of the lower sieve (11).

6. The high-efficiency classifying and screening mechanism for a Raymond mill according to claim 1, characterized in that: The motor (12) is a servo motor, model MHMD082P1U.

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