Three-roller grinding machine with automatic feeding mechanism

Abstract

The utility model relates to the field of grinding processing, and discloses a three-roller grinding machine with an automatic feeding mechanism, which comprises a grinding machine, the top end of the grinding machine is fixedly connected with a support frame, the inner side of the support frame is fixedly connected with a feeding box, the inner side of the grinding machine is provided with a roller shaft, the side wall of the right end of the support frame is fixedly connected with a motor, and the motor is fixedly connected with the feeding box. A rotating disc is fixedly connected to the output end of the motor, an adjusting mechanism is arranged on the inner wall of the rotating disc, a rotating rod is hinged to the inner side of the supporting frame, and a fixing rod is slidably connected to the inner wall of the rotating rod. According to the utility model, materials are poured into the feeding box, and the motor is started to drive related parts to operate, so that the opening of the baffle plate and the opening of the feeding box can coincide for feeding; and the feeding amount can be conveniently adjusted, the position of the extrusion block is changed by stopping the motor and twisting the lead screw, then the shielding degree of the shielding plate on the opening of the feeding box is controlled, flexible adjustment of the feeding amount is achieved, and different grinding requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of grinding and processing, and in particular to a three-roll grinding machine with an automatic feeding mechanism. Background Technology

[0002] Three-roll mills are a common type of grinding equipment, mainly used for fine grinding of various materials (such as pigments, coatings, inks, cosmetic raw materials, etc.). In order to improve production efficiency during the grinding process, three-roll mills with automatic feeding mechanisms are required.

[0003] The existing technology has the following drawbacks: traditional three-roll mills often have many inconveniences in the feeding process. Most of them lack automated feeding methods and require frequent manual intervention in material feeding. This is not only inefficient, but also difficult to accurately control the feeding amount and cannot flexibly meet the diverse grinding needs in the processing of different products. This limits the working efficiency and application range of three-roll mills to a certain extent. Therefore, a three-roll mill with an automatic feeding mechanism is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a three-roll mill with an automatic feeding mechanism, which aims to improve the problem of the inability to automatically control the feeding amount in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a three-roll mill with an automatic feeding mechanism, comprising a mill, a support frame fixedly connected to the top of the mill, a feed box fixedly connected to the inner side of the support frame, a roller shaft provided on the inner side of the mill, a motor fixedly connected to the right side wall of the support frame, a turntable fixedly connected to the output end of the motor, an adjustment mechanism provided on the inner wall of the turntable, a rotating rod hinged to the inner side of the support frame, a fixed rod slidably connected to the inner wall of the rotating rod, a baffle plate fixedly connected to the left end of the fixed rod, and a cleaning assembly provided on the inner side of the mill;

[0006] The adjusting mechanism includes a lead screw that passes through and is rotatably connected to the inner wall of the turntable. An extrusion block is provided on the outer wall of the lead screw, and a guide rod is slidably connected to the outer wall of the extrusion block.

[0007] As a further description of the above technical solution:

[0008] The cleaning assembly includes a fixed frame, which is fixedly connected to the inside of the grinder. A connecting plate is elastically connected to the top inner wall of the fixed frame via a return spring. A scraper is fixedly connected to the top of the connecting plate, and a moving rod is slidably connected to the outer wall of the connecting plate.

[0009] As a further description of the above technical solution:

[0010] The top inner wall of the fixed frame is fixedly connected to one end of the reset spring, and the other end of the reset spring is fixedly connected to the bottom end of the connecting plate.

[0011] As a further description of the above technical solution:

[0012] The connecting plate is slidably connected to the inner wall of the fixed frame.

[0013] As a further description of the above technical solution:

[0014] The scraper is slidably connected to the inner wall of the fixed frame.

[0015] As a further description of the above technical solution:

[0016] The movable rod is snapped onto the outer wall of the fixed frame.

[0017] As a further description of the above technical solution:

[0018] The extrusion block is slidably connected to the inner wall of the rotating rod.

[0019] As a further description of the above technical solution:

[0020] The baffle plate is slidably connected to the bottom of the feed box, and the guide rod is fixedly connected to the inner wall of the turntable.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by pouring the material into the feeding box and starting the motor to drive the relevant components to rotate, the opening of the baffle plate can be made to coincide with the opening of the feeding box for feeding; and the feeding amount can be easily adjusted by stopping the motor and turning the screw to change the position of the extrusion block, thereby controlling the degree of obstruction of the feeding box opening by the baffle plate, realizing flexible adjustment of the feeding amount to meet different grinding needs.

[0023] 2. In this utility model, when scraping is not required, the moving rod and other components can be easily operated to separate the scraper from the roller shaft; when scraping is required, the moving rod can be simply moved, and the scraper can be brought into contact with the roller shaft by the elastic force of the return spring. As the roller shaft rotates, the residual material on its surface is effectively removed, ensuring the good working condition of the roller shaft and the grinding effect. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a three-roll mill with an automatic feeding mechanism proposed in this utility model.

[0025] Figure 2This is a schematic diagram showing the motor and turntable of a three-roll mill with an automatic feeding mechanism proposed in this utility model;

[0026] Figure 3 This is a cross-sectional schematic diagram of the turntable of a three-roll mill with an automatic feeding mechanism proposed in this utility model.

[0027] Figure 4 This is a cross-sectional schematic diagram of a three-roll mill with an automatic feeding mechanism proposed in this utility model.

[0028] Figure 5 This is a cross-sectional view of the fixing frame of a three-roll mill with an automatic feeding mechanism proposed in this utility model.

[0029] Legend:

[0030] 1. Grinding machine; 2. Support frame; 3. Feed box; 4. Roller; 5. Motor; 6. Turntable; 7. Lead screw; 8. Extrusion block; 9. Guide rod; 10. Rotating rod; 11. Fixing rod; 12. Baffle plate; 13. Fixing frame; 14. Return spring; 15. Connecting plate; 16. Scraper; 17. Moving rod. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3This utility model provides an embodiment of a three-roll mill with an automatic feeding mechanism, comprising a mill 1, a support frame 2 fixedly connected to the top of the mill 1, the support frame 2 mainly supporting and connecting the feed box 3 and the motor 5, the feed box 3 fixedly connected to the inner side of the support frame 2, allowing pre-prepared materials to be fed into the feed box 3 for convenient centralized grinding and avoiding manual feeding one by one, the inner side of the mill 1 is provided with a roller 4, which is existing technology and can perform grinding processing on materials, and will not be described in detail here, the right side wall of the support frame 2 is fixedly connected to the motor 5, the output end of the motor 5 is fixed A turntable 6 is connected, and a slot is opened on the turntable 6 to allow the extrusion block 8 to move up and down along the slot. An adjustment mechanism is provided on the inner wall of the turntable 6. A rotating rod 10 is hinged to the inner side of the support frame 2. The middle part of the rotating rod 10 is hollow, which allows the extrusion block 8 to move along the hollow part. A fixed rod 11 is slidably connected to the inner wall of the rotating rod 10. A baffle plate 12 is fixedly connected to the left end of the fixed rod 11. The baffle plate 12 has an opening of the same size as the bottom of the feed box 3, which allows the opening on the baffle plate 12 to completely overlap or partially overlap with the opening at the bottom of the feed box 3, thereby controlling the amount of feed. A cleaning component is provided on the inner side of the grinding machine 1.

[0033] The adjusting mechanism includes a lead screw 7, which is rotatably connected to the inner wall of a turntable 6. The turntable 6 rotates slowly during use. The lead screw 7 is a trapezoidal thread rod with a stable thread angle (typically 30°), high root strength, and relatively stable and moderate friction between the threaded parts. After the turntable is slowly rotated and adjusted to the desired position, the reasonable friction between the threads and its own structural characteristics generate good self-locking performance, effectively preventing loosening and achieving reliable locking. A pressing block 8 is provided on the outer wall of the lead screw 7. The center of the pressing block 8 has a pattern corresponding to that of the lead screw 7, allowing the pressing block 8 to move along the outer wall of the lead screw 7. A guide rod 9 is slidably connected to the outer wall of the pressing block 8, guiding the pressing block 8.

[0034] Reference Figures 4-5 The cleaning component includes a fixed frame 13, which is fixedly connected to the inside of the grinder 1. The fixed frame 13 mainly connects to the connecting plate 15. The top inner wall of the fixed frame 13 is elastically connected to the connecting plate 15 through a return spring 14. The top of the connecting plate 15 is fixedly connected to a scraper 16, which can scrape off the residual material on the surface of the roller 4 through contact with the scraper 16, facilitating the subsequent use of the roller 4. The outer wall of the connecting plate 15 is slidably connected to a moving rod 17. The connecting plate 15 has a slot, which allows the moving rod 17 to move left and right along the slot.

[0035] The top inner wall of the fixed frame 13 is fixedly connected to one end of the return spring 14. When the connecting plate 15 moves downward, it will compress the return spring 14. During reset, the elastic force of the return spring 14 will carry the connecting plate 15 to reset. The other end of the return spring 14 is fixedly connected to the bottom end of the connecting plate 15. The connecting plate 15 is slidably connected to the inner wall of the fixed frame 13. The scraper 16 passes through and is slidably connected to the inner wall of the fixed frame 13. The fixed frame 13 has a slot for the scraper 16, which can satisfy the scraper 16 to move up and down along the slot. The moving rod 17 is engaged with the outer wall of the fixed frame 13. The outer wall of the fixed frame 13 is an L-shaped slot. The L-shape is a vertical opening and a horizontal opening. The vertical opening allows the moving rod 17 to move up and down with the connecting plate 15. The horizontal opening allows the moving rod 17 to be engaged, preventing the moving rod 17 from moving up and down with the connecting plate 15.

[0036] Reference Figures 1-3 The extrusion block 8 is slidably connected to the inner wall of the rotating rod 10, the baffle plate 12 is slidably connected to the bottom of the feed box 3, and the guide rod 9 is fixedly connected to the inner wall of the turntable 6.

[0037] Working principle: First, when automatic feeding is required, simply pour the prepared material into the feeding hopper 3, and follow the instructions... Figure 1 The motor 5 is then started, rotating the turntable 6 and the extrusion block 8 counterclockwise. This causes the extrusion block 8 to oscillate the rotating rod 10, creating a circular motion. The rotating rod 10 then oscillates the fixing rod 11, moving the baffle plate 12 forward. This allows the opening of the baffle plate 12 to gradually and completely overlap with the opening of the feed box 3, allowing the material in the feed box 3 to be fed onto the roller 4 for grinding. When the feed rate needs to be adjusted, simply stop the motor 5 to its initial state and twist the screw 7 to move the extrusion block 8 upward along the guide rod 9. The closer the extrusion block 8 is to the circle, the smaller the extrusion amplitude. During the feeding process, the overlap between the opening of the baffle plate 12 and the opening of the feed box 3 will decrease, causing the surface of the baffle plate 12 to block part of the opening of the feed box 3, allowing less material to fall onto the roller 4 for grinding.

[0038] Before grinding, if it is not necessary to scrape the surface of the roller shaft 4, the return spring 14 can be moved downwards, causing the connecting plate 15 and scraper 16 to move downwards and compress the return spring 14, so that the scraper 16 does not contact the roller shaft 4, and the moving rod 17 coincides with the transverse opening of the fixed frame 13. Move the moving rod 17 to the right so that the moving rod 17 is stuck in the transverse opening of the fixed frame 13. Use the elastic force of the return spring 14 to keep the moving rod 17 stuck in the fixed frame 13. When it is necessary to scrape the surface of the roller shaft 4, move the moving rod 17 to the left so that the moving rod 17 is separated from the transverse opening of the fixed frame 13. Use the reverse elastic force of the return spring 14 to move the moving rod 17, connecting plate 15 and scraper 16 upwards, so that the scraper 16 continues to contact the roller shaft 4. Through the rotation of the roller shaft 4, the scraper 16 can remove the residual material on the surface of the roller shaft 4.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A three-roll mill with an automatic feeding mechanism, comprising a mill (1), characterized in that: The top of the grinding machine (1) is fixedly connected to a support frame (2), the inner side of the support frame (2) is fixedly connected to a feed box (3), the inner side of the grinding machine (1) is provided with a roller (4), the right side wall of the support frame (2) is fixedly connected to a motor (5), the output end of the motor (5) is fixedly connected to a turntable (6), the inner wall of the turntable (6) is provided with an adjustment mechanism, the inner side of the support frame (2) is hinged to a rotating rod (10), the inner wall of the rotating rod (10) is slidably connected to a fixed rod (11), the left end of the fixed rod (11) is fixedly connected to a baffle plate (12), and the inner side of the grinding machine (1) is provided with a cleaning component; The adjusting mechanism includes a lead screw (7), which is rotatably connected to the inner wall of the turntable (6). An extrusion block (8) is provided on the outer wall of the lead screw (7), and a guide rod (9) is slidably connected to the outer wall of the extrusion block (8).

2. A three-roll mill with an automatic feeding mechanism according to claim 1, characterized in that: The cleaning assembly includes a fixed frame (13), which is fixedly connected to the inside of the grinder (1). The top inner wall of the fixed frame (13) is elastically connected to a connecting plate (15) via a return spring (14). The top of the connecting plate (15) is fixedly connected to a scraper (16), and the outer wall of the connecting plate (15) is slidably connected to a moving rod (17).

3. A three-roll mill with an automatic feeding mechanism according to claim 2, characterized in that: The top inner wall of the fixed frame (13) is fixedly connected to one end of the reset spring (14), and the other end of the reset spring (14) is fixedly connected to the bottom end of the connecting plate (15).

4. A three-roll mill with an automatic feeding mechanism according to claim 2, characterized in that: The connecting plate (15) is slidably connected to the inner wall of the fixed frame (13).

5. A three-roll mill with an automatic feeding mechanism according to claim 2, characterized in that: The scraper (16) is slidably connected to the inner wall of the fixed frame (13).

6. A three-roll mill with an automatic feeding mechanism according to claim 2, characterized in that: The movable rod (17) is snapped onto the outer wall of the fixed frame (13).

7. A three-roll mill with an automatic feeding mechanism according to claim 1, characterized in that: The extrusion block (8) is slidably connected to the inner wall of the rotating rod (10).

8. A three-roll mill with an automatic feeding mechanism according to claim 1, characterized in that: The baffle plate (12) is slidably connected to the bottom end of the feed box (3), and the guide rod (9) is fixedly connected to the inner wall of the turntable (6).

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