Three-roller grinding equipment for chemical powder

Abstract

The utility model relates to the technical field of rubber anti-aging agent production, in particular to chemical powder three-roller grinding equipment which comprises a three-roller grinding machine body, two threaded holes are formed in the upper side of the three-roller grinding machine body, one side of a scraping plate is arranged to be an arc-shaped face, one side of the scraping plate is attached to the surface of a discharging roller on the three-roller grinding machine body, and the other side of the scraping plate is arranged on the arc-shaped face. A reciprocating lead screw is arranged at the output end of a driving motor to rotate, the reciprocating lead screw drives a driving block to move, the reciprocating lead screw drives the driving block to move, the two threaded holes are fixedly provided with cleaning mechanisms, the two sides of a scraping plate are provided with scraping assemblies in a sliding mode, the inner wall of a moving groove is provided with a driving hole, and a driving unit is rotatably installed in the driving hole. The driving block drives the scraping plate to move, the scraping plate is attached to the discharging roller on the three-roller grinding machine body, redundant rubber anti-aging agents accumulated at the discharging roller are automatically scraped, manual scraping is not needed, manpower resources are saved, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber antioxidant production, in particular to a three-roller grinding device for chemical powder. Background Art

[0002] Rubber antioxidant is an additive used in rubber materials to improve its aging resistance. In order to extend the service life of rubber products and maintain their performance, the application of rubber antioxidant is very critical. During the production of rubber antioxidant, in order to improve its use effect, it needs to be ground, and grinding equipment is needed during grinding.

[0003] Chinese utility model patent CN220443901U: discloses a three-roll grinding device, wherein the first roller, the second roller and the third roller are rotatably connected inside the grinding machine body, the second roller is arranged between the first roller and the third roller, and the first roller and the third roller are arranged parallel to the second roller, a baffle is arranged at both ends of the connection between the first roller and the second roller, a feed trough is formed between the baffle and the first roller and the second roller, a storage hopper with a cavity at the bottom is arranged at the rear side of the feed trough and above the first roller, a rotating rod is rotatably connected between the inner walls of the cavity, and a groove is provided on both the upper and lower surfaces of the rotating rod, and the length direction of the groove is parallel to the central axis of the rotating rod. This three-roll grinding device realizes the continuous and small amount of slurry release, effectively avoiding the situation where the storage hopper releases too much at a time and causes slurry accumulation, thereby improving the grinding effect of the slurry.

[0004] However, the device still has some problems. The first motor drives the reducer to rotate the first roller, the second roller and the third roller. The slurry is then ground by continuously releasing a small amount of slurry into them, and the grinding is completed by discharging the material through the third roller. In actual use, when discharging the material, if the viscosity of the rubber antioxidant is high, or the material becomes more viscous due to the influence of temperature and humidity during the grinding process, it may accumulate at the discharge port of the three-roll grinder, which requires manual cleaning with a scraper, resulting in an increase in labor costs and reducing the practicality of the device. Utility Model Content

[0005] The purpose of the utility model is to provide a three-roll grinding device for chemical powders to solve the problems raised in the above-mentioned background technology. When discharging, if the viscosity of the rubber antioxidant is high, or the material becomes more viscous due to the influence of temperature and humidity during the grinding process, it may accumulate at the discharge port of the three-roll grinder, thereby requiring manual cleaning using a scraper, resulting in an increase in labor costs and reducing the practicality of the device.

[0006] The technical solution of the utility model is: a three-roller grinding device for chemical powder, comprising a three-roller grinding machine body, wherein two threaded holes are provided on the upper side of the three-roller grinding machine body, and cleaning mechanisms are fixedly installed in the two threaded holes;

[0007] The cleaning structure includes two mounting ears, the surfaces of the two mounting ears are threadedly installed with fixing bolts, the two fixing bolts are fixedly installed in two threaded holes, the opposite surfaces of the two mounting ears are fixedly installed with the same mounting frame, a movable groove is opened on the lower side of the mounting frame, a driving block is slidably installed in the movable groove, a scraper is fixedly installed on the lower side of the driving block, one side of the scraper is set as an arc surface, one side of the scraper is attached to the surface of the discharge roller of the three-roll grinder body, scraping components are slidably installed on both sides of the scraper, a driving hole is opened on the inner wall of the movable groove, and a driving unit is rotatably installed in the driving hole.

[0008] Preferably, the drive unit includes a reciprocating screw, which is rotatably mounted in a drive hole, and the drive block is threadedly mounted on the surface of the reciprocating screw. A motor slot is provided on one side of the mounting frame, and a drive motor is fixedly mounted in the motor slot. The output shaft of the drive motor is coaxially fixedly connected to one end of the reciprocating screw.

[0009] Preferably, the scraping assembly includes two cleaning plates, which are slidably mounted on both sides of the scraper respectively, and a same reciprocating block is fixedly mounted on one side of the two cleaning plates. A limiting hole is provided on the upper side of the reciprocating block, and a power unit is fixedly mounted in the limiting hole.

[0010] Preferably, the power unit comprises two limit blocks, both of which are fixedly mounted in the limit holes, a guide tube is rotatably mounted in the limit holes, a guide groove is provided on the surface of the guide tube, and both of the limit blocks are fitted in the guide groove.

[0011] Preferably, the power unit further comprises a rotating rod, the rotating rod is fixedly mounted in the guide tube, a gear is fixedly mounted on the surface of the rotating rod, a rack is fixedly mounted on one side of the mounting frame, and the gear is meshed with the rack.

[0012] Preferably, a feeding assembly is fixedly mounted on the upper side of the three-roller mill body, and a lower hopper is fixedly mounted on one side of the three-roller mill body.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model drives the reciprocating screw to rotate by the output end of the driving motor, the reciprocating screw drives the driving block to move, the driving block drives the scraper to move, the scraper is attached to the discharge roller on the three-roller grinding machine body, and the redundant rubber antioxidant accumulated on the discharge roller is automatically scraped off without manual scraping, which saves human resources and improves the practicality of the device.

[0015] 2. The utility model drives the cleaning plates on both sides to move horizontally through the scraper, and the cleaning plates on both sides drive the reciprocating blocks to move, the reciprocating blocks drive the guide tube to move, the guide tube drives the rotating rod to move, and the rotating rod rotates under the drive of the rack and the gear fixedly installed on the top, the rotating rod drives the guide tube to rotate, and the guide tube cooperates with the two limit blocks through the guide grooves opened on the surface to make the reciprocating block reciprocate up and down, and the reciprocating block drives the two cleaning plates to reciprocate, scrapes off the rubber antioxidant stuck on the surface of the scraper and guides it to the lower hopper for output, so as to keep the scraper clean and improve the reuse rate of the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the cleaning mechanism in the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-section structure of the mounting frame in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the scraping component in the utility model.

[0021] Description of reference numerals:

[0022] 1. Three-roller grinding machine body; 2. Feeding assembly; 3. Mounting frame; 4. Lower hopper; 5. Mounting ear; 6. Bolt; 7. Driving block; 8. Scraper; 9. Cleaning plate; 10. Reciprocating block; 11. Guide tube; 12. Guide groove; 13. Limit block; 14. Rotating rod; 15. Rack; 16. Gear; 17. Driving motor; 18. Reciprocating screw. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0024] Figure 1~Figure 4 It is the best embodiment of the utility model, and the following Figure 1~Figure 4 The utility model is further described.

[0025] like Figure 1~Figure 4 As shown, a three-roll grinding device for chemical powder includes a three-roll grinding machine body 1, and two threaded holes are provided on the upper side of the three-roll grinding machine body 1, and cleaning mechanisms are fixedly installed in the two threaded holes;

[0026] The cleaning structure includes two mounting ears 5, and the surfaces of the two mounting ears 5 are threadedly installed with fixing bolts 6, and the two fixing bolts 6 are fixedly installed in two threaded holes. The opposite surfaces of the two mounting ears 5 are fixedly installed with the same mounting frame 3, and the mounting frame 3 is installed on the upper side of the three-roll grinder body 1. A movable groove is opened on the lower side of the mounting frame 3, and a driving block 7 is slidably installed in the movable groove. A scraper 8 is fixedly installed on the lower side of the driving block 7, and one side of the scraper 8 is set as an arc surface. One side of the scraper 8 is attached to the surface of the discharge roller on the three-roll grinder body 1. Scraping components are slidably installed on both sides of the scraper 8, and a driving hole is opened on the inner wall of the movable groove. A driving unit is rotatably installed in the driving hole.

[0027] With the above structure, the three-roller grinder body 1 has the same working principle as the three-roller grinder in the prior art, which will not be elaborated here. The mounting frame 3 is fixedly mounted on the upper side of the three-roller grinder body 1 near the discharge port by two mounting ears 5 and bolts 6. The scraper 8 slidably mounted in the movable groove fits the surface of the grinding roller and keeps a certain distance from the discharge port. The scraper 8 is driven to move by the driving unit, so that the scraper 8 can scrape off the excessive rubber antioxidant accumulated on the upper side of the discharge port to prevent the excessive accumulation of rubber antioxidant from affecting the discharge.

[0028] Furthermore, the driving unit includes a reciprocating screw 18, which is rotatably installed in the driving hole, and the driving block 7 is screwed on the surface of the reciprocating screw 18. A motor slot is opened on one side of the mounting frame 3, and a driving motor 17 is fixedly installed in the motor slot. The output shaft of the driving motor 17 is coaxially fixedly connected to one end of the reciprocating screw 18.

[0029] With the above structure, the reciprocating screw 18 and the driving motor 17 are both existing technologies, and the motor slot is connected to the driving hole, so that the driving motor 17 provides power to the reciprocating screw 18 through the output end.

[0030] Furthermore, the scraping assembly includes two cleaning plates 9, which are slidably mounted on both sides of the scraper 8, and a same reciprocating block 10 is fixedly mounted on one side of the two cleaning plates 9. A limiting hole is provided on the upper side of the reciprocating block 10, and a power unit is fixedly mounted in the limiting hole.

[0031] With the above structure, the two cleaning plates 9 have the same size, are slidably mounted on both sides of the scraper 8 and are connected via a reciprocating block 10, and the reciprocating block 10 is driven by a power unit to perform reciprocating motion.

[0032] Furthermore, the power unit includes two limit blocks 13 , both of which are fixedly installed in the limit hole. A guide tube 11 is rotatably installed in the limit hole. A guide groove 12 is opened on the surface of the guide tube 11 , and both of the limit blocks 13 are fitted in the guide groove 12 .

[0033] With the above structure, the two limit blocks 13 are symmetrically installed in the limit hole, the guide groove 12 is set as a reciprocating U-shaped groove, and the two limit blocks 13 are set as spherical shapes and can fit in the U-shaped groove. When the guide tube 11 rotates, the reciprocating block 10 can move up and down through the two guide grooves 12.

[0034] Furthermore, the power unit also includes a rotating rod 14 , which is fixedly installed in the guide tube 11 , a gear 16 is fixedly installed on the surface of the rotating rod 14 , and a rack 15 is fixedly installed on one side of the mounting frame 3 , and the gear 16 meshes with the rack 15 .

[0035] With the above structure, when the rotating rod 14 moves horizontally, it drives the gear 16 to move horizontally, and the gear 16 can be driven to rotate vertically through the rack 15, thereby driving the rotating rod 14 to rotate.

[0036] Furthermore, a feeding assembly 2 is fixedly mounted on the upper side of the three-roller mill body 1 , and a lower hopper 4 is fixedly mounted on one side of the three-roller mill body 1 .

[0037] With the above structure, the feeding component 2 has the same working principle as that used in the above-mentioned reference documents, including a storage hopper, a rotating rod, a guide plate, etc. The rotating rod is driven to rotate by the motor, and the position of the grooves on its surface is switched to connect it with the outside world. By controlling the size of the opening, the amount of raw materials fed is controlled, and no further details will be given here.

[0038] Working principle: When the device is in use, first start the three-roller grinding machine body 1, then pour the rubber antioxidant into the delivery component and start the delivery component, the delivery component will deliver it quantitatively and evenly, then start the drive motor 17, the output end of the drive motor 17 drives the reciprocating screw 18 to rotate, the reciprocating screw 18 drives the drive block 7 to move, the drive block 7 drives the scraper 8 to move, the scraper 8 is attached to the discharge roller on the three-roller grinding machine body 1, and the redundant rubber antioxidant accumulated on the discharge roller is scraped off to prevent the rubber antioxidant from accumulating, and at the same time the scraper 8 drives the cleaning plates 9 on both sides to move horizontally, and the cleaning plates 9 on both sides carry The reciprocating block 10 moves, the reciprocating block 10 drives the guide tube 11 to move, the guide tube 11 drives the rotating rod 14 to move, the rotating rod 14 rotates under the drive of the rack 15 and the gear 16 fixedly installed on its top, the rotating rod 14 drives the guide tube 11 to rotate, the guide tube 11 cooperates with the two limit blocks 13 through the guide groove 12 opened on the surface to make the reciprocating block 10 reciprocate up and down, the reciprocating block 10 drives the two cleaning plates 9 to reciprocate, scrapes off the rubber antioxidant stuck on the surface of the scraper 8 and guides it to be discharged into the lower hopper 4, keeps the scraper 8 clean, and improves the reuse rate of the scraper 8.

[0039] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A three-roller grinding device for chemical powder, comprising a three-roller grinding machine body (1), characterized in that: The upper side of the three-roller grinding machine body (1) is provided with two threaded holes, and a cleaning mechanism is fixedly installed in the two threaded holes; The cleaning structure comprises two mounting ears (5), the surfaces of the two mounting ears (5) are threadedly mounted with fixing bolts (6), the two fixing bolts (6) are fixedly mounted in two threaded holes, the opposite surfaces of the two mounting ears (5) are fixedly mounted with the same mounting frame (3), the lower side of the mounting frame (3) is provided with a movable groove, a driving block (7) is slidably mounted in the movable groove, a scraper (8) is fixedly mounted on the lower side of the driving block (7), one side of the scraper (8) is arranged as an arc surface, one side of the scraper (8) is attached to the surface of the discharge roller of the three-roller grinding machine body (1), scraping components are slidably mounted on both sides of the scraper (8), the inner wall of the movable groove is provided with a driving hole, and a driving unit is rotatably mounted in the driving hole.

2. A three-roller grinding equipment for chemical powder according to claim 1, characterized in that: The drive unit comprises a reciprocating screw (18), the reciprocating screw (18) is rotatably mounted in a drive hole, the drive block (7) is threadedly mounted on the surface of the reciprocating screw (18), a motor slot is provided on one side of the mounting frame (3), a drive motor (17) is fixedly mounted in the motor slot, and an output shaft of the drive motor (17) is coaxially fixedly connected to one end of the reciprocating screw (18).

3. The three-roller grinding equipment for chemical powder according to claim 1, characterized in that: The scraping assembly comprises two cleaning plates (9), the two cleaning plates (9) being slidably mounted on two sides of the scraper (8), respectively, and a same reciprocating block (10) being fixedly mounted on one side of the two cleaning plates (9), a limiting hole being provided on the upper side of the reciprocating block (10), and a power unit being fixedly mounted in the limiting hole.

4. A three-roller grinding equipment for chemical powder according to claim 3, characterized in that: The power unit comprises two limit blocks (13), the two limit blocks (13) are fixedly mounted in the limit holes, a guide tube (11) is rotatably mounted in the limit holes, a guide groove (12) is provided on the surface of the guide tube (11), and the two limit blocks (13) are fitted in the guide groove (12).

5. A three-roller grinding equipment for chemical powder according to claim 4, characterized in that: The power unit further comprises a rotating rod (14), the rotating rod (14) being fixedly mounted in the guide tube (11), a gear (16) being fixedly mounted on the surface of the rotating rod (14), a rack (15) being fixedly mounted on one side of the mounting frame (3), and the gear (16) being meshed with the rack (15).

6. The three-roller grinding equipment for chemical powder according to claim 1, characterized in that: A feeding assembly (2) is fixedly mounted on the upper side of the three-roller grinding machine body (1), and a lower hopper (4) is fixedly mounted on one side of the three-roller grinding machine body (1).

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