Vertical grinding machine facilitating discharging

Abstract

The bottom of a grinding cylinder is connected with a discharging pipe, the upper end in the discharging pipe is connected with a collecting hopper, the top face of the upper portion of the collecting hopper is open and internally connected to the inner wall of the discharging pipe, the bottom face of the lower portion of the collecting hopper is closed and connected with a mounting box, and discharging openings are formed in the circumferential conical face of the collecting hopper at intervals. A driving motor is arranged in the mounting box; an output shaft of the driving motor is connected with a rotating disc; a swinging rod is eccentrically hinged to the rotating disc; the upper end of the swinging rod obliquely penetrates through the center of the bottom surface of the collecting hopper and is connected with the lower end of the stirring rod; the outlet end of the discharging pipe is connected with a fixing plate, a discharging opening is formed in the position, right opposite to the discharging pipe, of the fixing plate, and two discharging rollers rotating in the opposite direction are rotationally installed at the discharging opening of the fixing plate. Grinding materials in the collecting hopper can be continuously stirred through rotation of the stirring rod, and rapid discharging is achieved by matching opposite rotation of the discharging roller at the outlet end of the discharging pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of rapid material unloading of grinding equipment, in particular to a vertical grinding machine with convenient material unloading. Background Art

[0002] Vertical grinding mill is a kind of high-efficiency grinding equipment widely used in coatings, dyes, inks, pesticides, papermaking, chemical and other industries. It has the advantages of simple structure, stable start-up, high continuous production efficiency, convenient color change, easy cleaning and simple operation. Some materials are prone to aggregation during grinding due to a certain number of large-sized particles. For materials that may aggregate, it is necessary to discharge the materials from the grinding cylinder in time after grinding to prevent the accumulation of materials and the blockage of the discharge pipe, which may require the machine to be stopped to clear the discharge pipe.

[0003] The current grinding machine discharge tube is generally equipped with a vibration motor, which can use the vibration force to vibrate the discharge tube to promote the completion of material discharge as soon as possible. However, due to the different properties of the materials, this discharge structure cannot meet the needs of use. After long-term use, the material will accumulate and cause the discharge tube to become blocked, and the smooth discharge of the discharge tube cannot be guaranteed. Therefore, a vertical grinding machine with convenient material discharge is proposed to solve the above problems. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a vertical grinding machine with convenient unloading. The grinding material in the hopper can be continuously stirred by rotating the stirring rod and the discharge rollers at the outlet end of the discharge pipe can rotate towards each other to achieve rapid unloading.

[0005] The utility model is achieved through the following technical solutions:

[0006] A vertical grinding machine for convenient unloading is provided, comprising a grinding machine body, wherein the bottom of the grinding cylinder of the grinding machine body is funnel-shaped and a unloading port is provided at the lowest end thereof and connected to a unloading pipe. The characteristics are as follows: a collecting hopper in the shape of an inverted truncated cone is connected to the upper end of the unloading pipe, the top surface of the collecting hopper is open and internally connected to the inner wall of the unloading pipe, the bottom surface of the collecting hopper is closed and connected to an installation box, the circumferential conical surface of the collecting hopper is spaced apart with discharge ports communicating with the unloading pipe, and the inner wall of the collecting hopper is provided with a joint bearing located on the axis of the grinding cylinder through a fixing rod. A <-shaped stirring rod is rotatably installed through a joint bearing, a driving motor is arranged in the installation box, a rotating disk is connected to the output shaft of the driving motor, a swing rod is eccentrically hinged on the rotating disk, the upper end of the swing rod is tilted through the center of the bottom surface of the collecting hopper and is connected to the lower end of the stirring rod, and a joint bearing that rotates with the swing rod is installed at the center of the bottom surface of the collecting hopper; the outlet end of the discharge pipe is connected to a fixed plate, and a discharge port is opened on the fixed plate opposite to the discharge pipe, and two discharge rollers that rotate in opposite directions are rotatably installed between the fixed plate and the discharge pipe at the discharge port.

[0007] Furthermore, a fixed cover is sealed and connected between the two sides of the discharge pipe and the fixed plate, and a discharge roller is rotatably installed in each fixed cover through a bearing, and a discharge motor is installed on the fixed plate opposite to one of the discharge rollers, and a driving pulley is installed on the driving shaft of the discharge motor and the driving shaft is connected to the rotating shaft of the discharge roller, and a driven gear is fixed to the rotating shaft of the other discharge roller outside the fixed cover, and a rotating seat is installed on one side of the discharge motor on the fixed plate and is rotatably connected to a transmission shaft in the rotating seat, and a transmission pulley and a transmission gear are respectively fixed to one end of the transmission shaft, and a transmission belt is connected between the driving pulley and the transmission pulley, and the transmission gear is meshed with the driven gear for transmission connection.

[0008] A fixed cover is set between the two sides of the discharge pipe and the fixed plate, and a discharge roller is rotatably installed on it. The discharge motor drives the driving pulley and cooperates with the transmission belt to drive the driven pulley to drive the transmission shaft to rotate. The transmission gear on the transmission shaft drives the driven gear to rotate, and then drives the other discharge roller to rotate synchronously, so that the two discharge rollers rotate synchronously in opposite directions, thereby squeezing and discharging the material in the discharge pipe and accelerating the discharge.

[0009] Preferably, the stirring rod is connected to a scraper with a matching triangular shape at the included angle.

[0010] The stirring rod is connected to a triangular scraper of matching shape at its angle. During the stirring process of the stirring rod rotating, the scraper can be used to continuously push the ground material toward the discharge port of the circumferential cone surface of the aggregate hopper, so that it is continuously discharged into the discharge pipe to prevent material accumulation from blocking the aggregate hopper.

[0011] Furthermore, an interlayer is provided on the outer wall of the grinding cylinder, and a cooling cavity is provided in the interlayer. The upper and lower parts of the outer wall of the grinding cylinder are respectively connected to cooling water circulation pipes communicating with the cooling cavity.

[0012] An interlayer is provided on the outer wall of the grinding cylinder, and a cooling cavity is provided in the interlayer. Cooling water is continuously discharged into the cooling cavity through a cooling water circulation pipe to absorb the heat generated by the grinder during grinding and ensure the stability of the equipment.

[0013] Preferably, discharge plates are alternately installed on the circumferential surfaces of the two discharge rollers.

[0014] Discharge plates are staggeredly installed on the circumference of the discharge roller. When the discharge roller rotates, the discharge plates can be used to increase the contact area with the material, thereby accelerating the discharge of the material.

[0015] Furthermore, a uniform speed feeding mechanism is installed at the feed port on the upper part of the grinding cylinder, and the uniform speed feeding mechanism includes a feeding hopper, and the bottom outlet of the feeding hopper is connected to a conveying pipe. The feeding hopper is installed with a conveying motor located directly above the feeding hopper through a mounting rod, and the output shaft of the conveying motor is downward and connected to a transmission rod; the lower part of the transmission rod extends into the conveying pipe and is installed with a spiral conveying blade.

[0016] By setting up a conveying motor and using the transmission rod to drive the spiral conveying blade to rotate, the grinding material can be controlled at a uniform speed so that it enters the grinding cylinder, making the grinding and crushing in the grinding cylinder more efficient.

[0017] Beneficial effects of the utility model:

[0018] The utility model installs a stirring mechanism and a discharge mechanism in the discharge pipe at the bottom of the grinding cylinder respectively, and can utilize the stirring rod of the stirring mechanism to continuously stir and disturb the grinding material in the collecting hopper, effectively preventing material accumulation; during the rotation process, the grinding material is continuously pushed into the discharge port and into the discharge pipe by the scraper; the discharge rollers below rotate in opposite directions and cooperate with the discharge plate to continuously squeeze the material out of the discharge pipe, which can realize accelerated discharge of the vertical grinder and effectively alleviate the problem of blockage of the discharge pipe caused by material accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present utility model.

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the feed pipe in Example 1 of the present utility model.

[0021] Figure 3 for Figure 2 Schematic diagram of the structure of the intermediate hopper.

[0022] Figure 4 This is a top view of the feed pipe in Example 1 of the present utility model.

[0023] Figure 5 This is a structural diagram of Example 2 of the present utility model.

[0024] As shown in the figure:

[0025] 1. Grinding cylinder, 2. Discharge port, 3. Collecting hopper, 4. Stirring rod, 5. Mounting box, 6. Discharge pipe, 7. Discharge roller, 8. Fixed cover, 9. Discharge port, 10. Scraper, 11. Rotating disk, 12. Driving motor, 13. Discharge plate, 14. Fixed plate, 15. Discharge port, 16. Joint bearing, 17. Swing rod, 18. Discharge motor, 19. Driving pulley, 20. Rotating seat, 21. Drive shaft, 22. Driven pulley, 23. Drive belt, 24. Drive gear, 25. Driven gear, 26. Conveying motor, 27. Discharge hopper, 28. Conveying pipe, 29. Drive rod, 30. Spiral conveying blade, 31. Cooling chamber, 32. Cooling water circulation pipeline. DETAILED DESCRIPTION

[0026] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0027] Example 1:

[0028] A vertical grinder with convenient unloading includes a grinder body. The bottom of the grinding cylinder 1 of the grinder body is funnel-shaped and a unloading port 2 is opened at the lowest end and connected to a unloading pipe 6. The utility model is improved for the unloading part of the vertical grinder and is theoretically suitable for various vertical grinders.

[0029] A collecting hopper 3 in the shape of an inverted frustum is connected to the upper end of the discharge pipe 6 of the grinding cylinder 1. The top surface of the collecting hopper 3 is open and connected to the inner wall of the discharge pipe 6. The bottom surface of the lower part of the collecting hopper 3 is closed and connected to the installation box 5. The circumferential conical surface of the collecting hopper 3 is spaced apart with discharge ports 9 connected to the discharge pipe 6. The inner wall of the collecting hopper 3 is installed with a joint bearing 16 located on the axis of the grinding cylinder 1 through a fixed rod, and a stirring rod 4 in the shape of a < is rotatably installed through the joint bearing 16. The stirring rod 4 includes an upper part and a lower part of the joint bearing 16. The upper and lower parts of the stirring rod 4 are connected with a triangular scraper 10 of matching shape at the angle.

[0030] A driving motor 12 is provided in the installation box 5, and a rotating disk 11 is connected to the output shaft of the driving motor 12. A swing rod 17 is eccentrically hinged on the rotating disk 11. The upper end of the swing rod 17 obliquely passes through the center of the bottom surface of the collecting hopper 3 and is connected to the lower end of the stirring rod 4. A joint bearing 16 that rotates with the swing rod 17 is installed at the center of the bottom surface of the collecting hopper 3; the outlet end of the discharge pipe 6 is connected to a fixed plate 14, and the fixed plate 14 is provided with a discharge port 15 facing the discharge pipe 6, and the fixed plate 14 is rotatably installed with two discharge rollers 7 that rotate in opposite directions at the discharge port 15.

[0031] Fixed covers 8 are sealed between the two sides of the discharge pipe 6 and the fixed plate 14. A discharge roller 7 is rotatably installed in each fixed cover 8 through a bearing. Discharge plates 13 are staggeredly installed on the circumference of the two discharge rollers 7.

[0032] A discharge motor 18 is installed on the fixed plate 14 opposite one of the discharge rollers 7. A driving pulley 19 is installed on the driving shaft of the discharge motor 18 and the driving shaft is connected to the rotating shaft of the discharge roller 7. The rotating shaft of the other discharge roller 7 is fixed with a driven gear 25 outside the fixed cover 8. A rotating seat 20 is installed on one side of the discharge motor 18 of the fixed plate 14 and a transmission shaft 21 is rotatably connected in the rotating seat 20. A transmission pulley 22 and a transmission gear 24 are respectively fixed at one end of the transmission shaft 21. A transmission belt 23 is connected between the driving pulley 19 and the transmission pulley 22, and the transmission gear 24 is meshed and connected with the driven gear 25.

[0033] The new working process of this utility model:

[0034] After the material is ground in the grinding cylinder 1, it will be discharged from the discharge port 2 at the bottom of the grinding cylinder 1 through the discharge pipe 6. The ground material passes through the discharge port 2 and is collected in the collecting hopper 3. The driving motor 12 drives the rotating disk 11 to rotate. The swing rod 17 on the rotating disk 11 cooperates with the joint bearing 16 to swing continuously, thereby driving the stirring rod 4 in the collecting hopper 3 to swing continuously, thereby stirring and disturbing the material in the collecting hopper 3. While stirring the material, the stirring rod 4 uses the scraper 10 at the angle of the stirring rod 4 to continuously scrape the material and discharge it from the discharge port 9 of the circumferential cone surface of the collecting hopper 3 and fall into the discharge pipe 6. The two discharge rollers 7 at the outlet of the discharge pipe 6 are driven by the discharge motor 18 and cooperate with the pulley and gear transmission to realize the synchronous rotation of the two discharge rollers 7. The discharge plate 13 on the discharge roller 7 is used to continuously squeeze the falling material and discharge it from the discharge port 15, which greatly improves the discharge speed of the discharge pipe 6, helps the discharge pipe 6 to quickly discharge the material and greatly reduces the chance of blockage of the discharge pipe 6.

[0035] Example 2:

[0036] In this embodiment, based on Example 1, the outer wall of the grinding cylinder 1 is provided with an interlayer, and a cooling chamber 31 is provided within the interlayer. Cooling water circulation pipes 32 are connected to the upper and lower outer walls of the grinding cylinder 1 and communicate with the cooling chamber 31. The cooling water circulating in the cooling water circulation pipes 32 continuously removes the heat generated during grinding in the vertical mill, helping to maintain the stability of the mill and achieve stable grinding.

[0037] A uniform feeding mechanism is mounted at the feed inlet at the top of the grinding drum 1. This mechanism includes a hopper 27, the bottom outlet of which is connected to a delivery pipe 28. A delivery motor 26 is mounted directly above the hopper 27 via a mounting rod. The output shaft of the delivery motor 26 points downward and is connected to a transmission rod 29. The lower portion of the transmission rod 29 extends into the delivery pipe 28 and is fitted with a spiral delivery blade 30. During operation, the material to be ground is added to the hopper 27. By activating the delivery motor 26, the spiral delivery blade 30 on the transmission rod 29 continuously feeds the material in the hopper 27 downward at a uniform speed into the grinding drum 1 for grinding. This ensures more thorough grinding and helps improve the grinding effect of the grinder.

[0038] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A vertical grinding machine for convenient unloading, comprising a grinding machine body, wherein the bottom of the grinding cylinder of the grinding machine body is funnel-shaped and a unloading port is opened at the lowest end and connected to a unloading pipe, characterized in that: The upper end of the discharge pipe is connected to a collecting hopper in the shape of an inverted frustum. The top surface of the collecting hopper is open and connected to the inner wall of the discharge pipe. The bottom surface of the lower part of the collecting hopper is closed and connected to an installation box. The circumferential conical surface of the collecting hopper is spaced apart with discharge ports connected to the discharge pipe. The inner wall of the collecting hopper is provided with a joint bearing located on the axis of the grinding cylinder through a fixed rod, and a <-shaped stirring rod is rotatably installed through the joint bearing. A driving motor is provided in the installation box, and a rotating disk is connected to the output shaft of the driving motor. A swing rod is eccentrically hinged on the rotating disk. The upper end of the swing rod obliquely passes through the center of the bottom surface of the collecting hopper and is connected to the lower end of the stirring rod. A joint bearing that rotates with the swing rod is installed in the center of the bottom surface of the collecting hopper; the outlet end of the discharge pipe is connected to a fixed plate, and a discharge port is opened on the fixed plate opposite to the discharge pipe. Two discharge rollers that rotate in opposite directions are rotatably installed between the fixed plate and the discharge pipe at the discharge port.

2. The vertical grinding machine with convenient unloading according to claim 1, characterized in that: A fixed cover is sealed and connected between the two sides of the discharge pipe and the fixed plate. A discharge roller is rotatably installed in each fixed cover through a bearing. A discharge motor is installed on the fixed plate opposite to one of the discharge rollers. A driving pulley is installed on the driving shaft of the discharge motor and the driving shaft is connected to the rotating shaft of the discharge roller. A driven gear is fixed to the rotating shaft of the other discharge roller outside the fixed cover. A rotating seat is installed on one side of the discharge motor on the fixed plate and is rotatably connected to a transmission shaft in the rotating seat. A transmission pulley and a transmission gear are respectively fixed to one end of the transmission shaft. The driving pulley and the transmission pulley are connected by a transmission belt, and the transmission gear is meshed with the driven gear for transmission connection.

3. The vertical grinding machine with convenient unloading according to claim 1, characterized in that: The stirring rod is connected with a triangular scraper of matching shape at the included angle.

4. The vertical grinding machine with convenient unloading according to claim 1, characterized in that: The outer wall of the grinding cylinder is provided with an interlayer, and a cooling cavity is provided in the interlayer. The upper and lower parts of the outer wall of the grinding cylinder are respectively connected with cooling water circulation pipes communicating with the cooling cavity.

5. The vertical grinding machine with convenient unloading according to claim 1, characterized in that: Discharge plates are alternately installed on the circumferences of the two discharge rollers.

6. The vertical grinding machine with convenient unloading according to claim 1, characterized in that: A uniform feeding mechanism is installed at the feed port on the upper part of the grinding cylinder. The uniform feeding mechanism includes a feeding hopper. The bottom outlet of the feeding hopper is connected to a conveying pipe. The feeding hopper is equipped with a conveying motor located directly above the feeding hopper through a mounting rod. The output shaft of the conveying motor is downward and connected to a transmission rod. The lower part of the transmission rod extends into the conveying pipe and is equipped with a spiral conveying blade.

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