Fireproof coating production raw material sand mill

Abstract

The utility model discloses a raw material sand mill for fireproof coating production. The raw material sand mill comprises a base and an automatic delivery mechanism, a sanding mechanism is arranged at the upper end of the base and comprises an end cover and a sanding cylinder, the sanding cylinder is arranged at the right end of the front side face of the base, the end cover is fixedly connected to the front end of the sanding cylinder, and supporting columns which are symmetrically distributed left and right are arranged at the lower end of the sanding cylinder; the automatic sending-out mechanism comprises supporting wheels, a mounting frame, a rotating shaft and a driving wheel, the uniformly distributed supporting wheels are rotationally connected to the left side and the right side of the front end of the base through rotating seats, supporting columns are slidably connected to the inner arc surfaces of the vertically adjacent supporting wheels correspondingly, and the bottom wall of the base is fixedly connected with the mounting frame; according to the fireproof coating production raw material sand mill, the sand milling barrel is more stable during operation through the supporting columns, meanwhile, the sand milling barrel can be automatically conveyed out, and cleaning is convenient.

Description

Technical Field

[0001] This utility model relates to the field of fire-retardant coating production technology, specifically a sand mill for producing raw materials for fire-retardant coatings. Background Technology

[0002] Fire-retardant coatings are special coatings applied to the surface of combustible substrates to reduce the flammability of the coated material, inhibit the rapid spread of fire, and improve the fire resistance of the coated material. They are applied to the surface of combustible substrates to alter the surface combustion characteristics of the material and inhibit the rapid spread of fire; or to building components to improve the fire resistance of the components.

[0003] Sand mills are wet ultrafine grinding equipment, developed from ball mills. They are widely used in the pigment dispersion and grinding process in ink production. During the high-speed rotation of the eccentric disc on the stirring shaft of the sand mill, the mixture of material and grinding media undergoes efficient relative motion. As a result, the solid particles of the material are effectively dispersed, sheared, and ground. To facilitate cleaning, the sand mill cylinder is usually equipped with pulleys at the lower end. Cleaning requires disassembling and pulling out the sand mill cylinder. The sand mill cylinder is relatively large, and pulling it out may cause collisions with the stirring shaft, which is also quite laborious. Furthermore, the supporting effect of the pulleys is limited during operation, resulting in significant vibration of the sand mill cylinder. Therefore, we propose a sand mill for raw materials used in fire-retardant coating production. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a sand mill for the production of fireproof coating raw materials. The sand mill cylinder is made more stable during operation by the support column, and the sand mill cylinder can be automatically discharged for easy cleaning, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sand mill for producing raw materials for fireproof coatings, comprising a base and an automatic feeding mechanism;

[0006] Base: A sanding mechanism is provided on its upper end. The sanding mechanism includes an end cap and a sanding cylinder. A sanding cylinder is provided on the right end of the front side of the base. An end cap is fixedly connected to the front end of the sanding cylinder. Support columns are symmetrically distributed on the left and right sides at the lower end of the sanding cylinder.

[0007] Automatic feeding mechanism: It includes support wheels, mounting frame, rotating shaft and drive wheel. The left and right sides of the front end of the base are rotatably connected to evenly distributed support wheels through rotating seats. Support columns are slidably connected to the inner arc surfaces of vertically adjacent support wheels. The bottom wall of the base is fixedly connected to the mounting frame. The upper and lower ends of the mounting frame are rotatably connected to three evenly distributed rotating shafts. Drive wheels are fixedly sleeved on the left and right ends of the rotating shafts. The rear ends of the support columns are slidably connected between two vertically adjacent drive wheels on the same side. The support columns make the sanding cylinder more stable during operation and can automatically feed out the sanding cylinder for easy cleaning.

[0008] Furthermore, it also includes a control switch assembly, which is disposed on the upper surface of the base. The input end of the control switch assembly is electrically connected to an external power source to control electrical appliances.

[0009] Furthermore, the sanding mechanism also includes a shearing cylinder, an eccentric sanding wheel, and a sanding shaft. The sanding shaft is rotatably connected to the right end of the front side of the base. The middle of the sanding shaft is provided with evenly distributed eccentric sanding wheels. The installation angle of the eccentric sanding wheels increases by 90° from front to back. The front end of the sanding shaft is provided with a shearing cylinder. Both the shearing cylinder and the eccentric sanding wheel are located inside the sanding cylinder to achieve sanding.

[0010] Furthermore, the grinding mechanism also includes a motor, a pulley, and a second pulley. The rear end of the grinding shaft is fixedly fitted with the first pulley. The left end of the front side of the base is fixedly connected to the motor. The right end of the output shaft of the motor is fixedly fitted with the second pulley. The second pulley and the first pulley are connected by a belt drive. The input end of the motor is electrically connected to the output end of the control switch group to realize the rotation of the grinding shaft.

[0011] Furthermore, the automatic feeding mechanism also includes a synchronous pulley, gears, and a second motor. Gears are fixedly fitted on the right end of the rotating shaft in the middle, and two vertically adjacent gears are meshed together. Synchronous pulleys are fixedly fitted on the left end of the rotating shaft, and two adjacent synchronous pulleys are connected by a synchronous belt drive. The second motor is fixedly connected to the right side of the mounting bracket. The output shaft of the second motor is fixedly connected to the rotating shaft at the upper middle part. The input end of the second motor is electrically connected to the output end of the control switch group to realize the synchronous rotation of the rotating shaft.

[0012] Furthermore, the automatic feeding mechanism also includes a tensioning assembly, which includes a pressure wheel, a lead screw one, an adjusting wheel, a lead screw two, and a slider. The bottom wall of the mounting frame is fixedly connected to symmetrically distributed mounting seats, each located between two adjacent rotating shafts. Lead screw one is rotatably connected to the left side of each mounting seat, and lead screw two is rotatably connected to the right side of each mounting seat. Slider blocks, arranged vertically, are positioned between lead screw one and lead screw two on the same mounting seat. A pressure wheel is rotatably connected to the left end of each slider, and the outer arc surface of the pressure wheel is perpendicular to the vertical axis. The surfaces of adjacent belts are in contact. The upper end of screw 1, located on the same mounting base, is threadedly connected to the left end of the upper slider. The lower end of screw 1, located on the same mounting base, is slidably connected to the inside of through hole 1 at the left end of the lower slider. The lower end of screw 2, located on the same mounting base, is threadedly connected to the right end of the lower slider. The upper end of screw 2, located on the same mounting base, is slidably connected to the inside of through hole 2 at the right end of the upper slider. Adjusting wheels are fixedly sleeved on the upper ends of both screw 1 and screw 2 to realize the automatic forward and backward movement of the grinding cylinder.

[0013] Furthermore, a collection trough is placed at the front end of the base, located at the lower end of the grinding cylinder, to collect grinding beads and residual raw materials for fire-retardant coating production.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This sand mill for producing raw materials for fireproof coatings has the following advantages:

[0015] The support column, through its cooperation with the support wheel and the drive wheel, increases the number of stress points. When grinding raw materials for fireproof coatings, the force generated by the vibration of the grinding cylinder is dispersed among various stress points, making the grinding cylinder run more stably. At the same time, the drive wheel can drive the support column to move back and forth, avoiding collisions between the grinding cylinder and the eccentric grinding wheel when grinding raw materials for fireproof coatings, while also saving effort, facilitating the disassembly and assembly of the grinding cylinder, and making cleaning more convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the automatic delivery mechanism of this utility model;

[0019] Figure 4 This is a front structural diagram of the support wheel of this utility model.

[0020] In the diagram: 1. Base; 2. Grinding mechanism; 21. End cap; 22. Shearing cylinder; 23. Grinding cylinder; 24. Eccentric grinding wheel; 25. Grinding shaft; 26. Motor 1; 27. Belt pulley 1; 28. Belt pulley 2; 3. Automatic feeding mechanism; 31. Support wheel; 32. Mounting bracket; 33. Synchronous belt pulley; 34. Gear; 35. Tightening assembly; 351. Pressure wheel; 352. Lead screw 1; 353. Adjusting wheel; 354. Lead screw 2; 355. Slider; 36. Rotating shaft; 37. Drive wheel; 38. Motor 2; 4. Support column; 5. Collection trough; 6. Control switch group. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This embodiment provides a technical solution: a sand mill for producing raw materials for fireproof coatings, including a base 1 and an automatic feeding mechanism 3;

[0023] Base 1: A grinding mechanism 2 is provided on its upper end. The grinding mechanism 2 includes an end cap 21 and a grinding cylinder 23. The grinding cylinder 23 is provided on the right end of the front side of the base 1. The end cap 21 is fixedly connected to the front end of the grinding cylinder 23. The lower end of the grinding cylinder 23 is provided with symmetrically distributed support columns 4. The grinding mechanism 2 also includes a shearing cylinder 22, an eccentric grinding wheel 24 and a grinding shaft 25. The grinding shaft 25 is rotatably connected to the right end of the front side of the base 1. The grinding shaft 25 has evenly distributed eccentric grinding wheels in the middle. The grinding wheel 24, with its eccentric grinding wheel 24, has an installation angle that increases by 90° from front to back. A shearing cylinder 22 is located at the front end of the grinding shaft 25. Both the shearing cylinder 22 and the eccentric grinding wheel 24 are located inside the grinding cylinder 23. The grinding mechanism 2 also includes a motor 26, a pulley 27, and a pulley 28. The rear end of the grinding shaft 25 is fixedly fitted with pulley 27. The left end of the front side of the base 1 is fixedly connected to the motor 26, and the right end of the output shaft of the motor 26 is fixedly fitted with pulley 28. 28. Belt pulley 28 is connected to belt pulley 27 via belt drive. The input end of motor 26 is electrically connected to the output end of control switch group 6. The rear end of the sand grinding cylinder 23 is aligned with the front side of the base 1. Then, the sand grinding cylinder 23 is installed and fixed. The rear end of the sand grinding cylinder 23 is connected to the feeding device. The raw material for fireproof coating production is fed in from the rear end of the sand grinding cylinder 23. The output shaft of motor 26 drives belt pulley 28 to rotate. The belt drives belt pulley 27 and sand grinding shaft 25 to rotate. The eccentric sand grinding wheel 24 drives the sand grinding beads and the raw material for fireproof coating production to rotate inside the sand grinding cylinder 23. The vibration of the sand grinding cylinder 23 is reduced by the support of the support column 4. The sand grinding beads simultaneously sand the raw material for fireproof coating production. The installation angle of the eccentric sand grinding wheel 24 increases by 90° from front to back, so that the rotation position of each eccentric sand grinding wheel 24 is different, increasing the shearing force. The shearing cylinder 22 shears the raw material for fireproof coating production again. The sand-ground raw material for fireproof coating production is sent out from the end cover 21.

[0024] Automatic feeding mechanism 3: It includes support wheels 31, mounting frame 32, rotating shaft 36, and drive wheel 37. The left and right sides of the front end of the base 1 are rotatably connected to evenly distributed support wheels 31 via rotating seats. Support columns 4 are slidably connected to the inner arc surfaces of vertically adjacent support wheels 31. The bottom wall of the base 1 is fixedly connected to the mounting frame 32. The upper and lower ends of the mounting frame 32 are rotatably connected to three evenly distributed rotating shafts 36. Drive wheels 37 are fixedly sleeved on both the left and right ends of the rotating shafts 36. The rear ends of the support columns 4 are slidably connected between two vertically adjacent drive wheels 37 on the same side. Automatic feeding mechanism 3 also includes a synchronous belt pulley 33, gear 34, and motor 38. Gear 34 is fixedly sleeved on the right end of the rotating shaft 36 located in the middle. Two vertically adjacent gears 34 are meshed together. A synchronous pulley 33 is fixedly fitted onto the left end of each rotating shaft 36. Two adjacent synchronous pulleys 33 are connected via a synchronous belt drive. A second motor 38 is fixedly connected to the right side of the mounting frame 32. The output shaft of the second motor 38 is fixedly connected to the rotating shaft 36 at the upper middle part. The input end of the second motor 38 is electrically connected to the output end of the control switch group 6. The automatic feeding mechanism 3 also includes a tensioning assembly 35, which includes a pressure wheel 351, a lead screw 352, an adjusting wheel 353, a second lead screw 354, and a slider 355. The bottom wall of the mounting frame 32 is fixedly connected to symmetrically distributed mounting seats, which are located between two adjacent rotating shafts 36. A lead screw is rotatably connected to the left side of each mounting seat. A first screw 352 is rotatably connected to the right side of the mounting base. Between the first screw 352 and the second screw 354 located on the same mounting base, vertically distributed sliders 355 are arranged. Each slider 355 has a pressure wheel 351 rotatably connected to its left end. The outer arc surface of the pressure wheel 351 contacts the surface of the vertically adjacent belt. The upper end of the first screw 352 on the same mounting base is threadedly connected to the left end of the upper slider 355. The lower end of the first screw 352 on the same mounting base is slidably connected to the interior of the through hole 1 on the left end of the lower slider 355. The lower end of the second screw 354 on the same mounting base is threadedly connected to the right end of the lower slider 355. The upper end of the second screw 354 on the same mounting base is... The upper slider 355 is connected to the through hole 2 on the right side. Adjusting wheels 353 are fixedly fitted on the upper ends of both lead screw 1 352 and lead screw 2 354. A collection groove 5 is placed at the front end of the base 1. The collection groove 5 is located at the lower end of the sanding cylinder 23. Sanding beads are installed inside the sanding cylinder 23. Then, the motor 2 38 rotates, driving the rotating shaft 36 and gear 34 at the upper middle part to rotate. Through the transmission of the two gears 34, the rotating shaft 36 at the lower middle part rotates relative to each other. Through the transmission of the synchronous belt pulley 33, the rotating shafts 36 on the left and right sides rotate synchronously. When installing the synchronous belt, the lead screw 1 352 is rotated by adjusting wheel 353, and the upper slider 355 moves down. The pressing wheel 351 of the upper slider 355 presses down to press the vertically adjacent synchronous belt.Similarly, lead screw 354 drives the lower slider 355 to move upward, and the pressure wheel 351 of the lower slider 355 pushes upward, tightening the vertically adjacent synchronous belt, thus achieving belt tension. The support column 4 is pulled backward between the two vertically adjacent drive wheels 37 on the rear side, and the front end of the support column 4 slides backward between the adjacent support wheels 31 on the front side. After grinding, the fastening bolts of the grinding cylinder 23 are loosened, and the drive wheel 37 drives the support column 4 to slide forward. The grinding cylinder 23 vertically retracts from the grinding shaft 25 to avoid collision with the eccentric grinding wheel 24. The residual fire-retardant coating raw materials from the grinding beads fall into the collection tank 5 for collection.

[0025] It also includes a control switch group 6, which is located on the upper surface of the base 1, and the input terminal of the control switch group 6 is electrically connected to an external power supply.

[0026] The working principle of the sand mill for producing fireproof coating raw materials provided by this utility model is as follows: Sanding beads are installed inside the sand mill cylinder 23. Then, motor 2 38 rotates, driving the upper central shaft 36 and gear 34 to rotate. Through the transmission of the two gears 34, the lower central shaft 36 rotates relative to each other. Through the transmission of the synchronous belt pulley 33, the left and right shafts 36 rotate synchronously. When installing the synchronous belt, adjusting wheel 353 rotates the lead screw 352, causing the upper slider 355 to move downwards. The pressing wheel 351 of slider 355 presses down to tighten the vertically adjacent synchronous belt. Similarly, the lead screw 354 drives the lower slider 355 to move upward, and the pressing wheel 351 of the lower slider 355 pushes up to tighten the vertically adjacent synchronous belt, thus achieving the tensioning of the synchronous belt. The support column 4 is pulled backward between the two vertically adjacent drive wheels 37 on the rear side, and the front end of the support column 4 slides backward between the adjacent support wheels 31 on the front side. The rear end of the grinding cylinder 23 is aligned with the front side of the base 1, and then the grinding cylinder 23 is installed and fixed. The rear end of the grinding cylinder 23 is connected to a feeding device. The raw materials for fire-retardant coating production are fed into the grinding cylinder 23 from the rear end. The output shaft of motor 26 drives pulley 28 to rotate, which in turn drives pulley 27 and the grinding shaft 25 to rotate via a belt. The eccentric grinding wheel 24 drives the grinding beads and the raw materials for fire-retardant coating production to rotate inside the grinding cylinder 23. The vibration of the grinding cylinder 23 is reduced by the support of the support column 4. Simultaneously, the grinding beads grind the raw materials for fire-retardant coating production. The eccentric grinding wheel 24 is installed at various angles from front to back. Increasing the angle by 90° makes the rotation of each eccentric grinding wheel 24 different, increasing the shearing force. The shearing cylinder 22 shears the fire-retardant coating production raw material again. The fire-retardant coating production raw material after grinding is sent out from the end cover 21. After grinding, the fastening bolts of the grinding cylinder 23 are loosened, and the drive wheel 37 drives the support column 4 to slide forward. The grinding cylinder 23 exits vertically from the grinding shaft 25 to avoid collision with the eccentric grinding wheel 24. The fire-retardant coating production raw material remaining in the grinding beads falls into the collection tank 5 for collection.

[0027] It is worth noting that the motor 26 disclosed in the above embodiments can be a YBBP motor, the motor 38 can be a GV22-400-30S motor, and the control switch group 6 is provided with switch buttons corresponding to the motor 26 and the motor 38 for controlling their switching operation.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sand mill for producing raw materials for fire-retardant coatings, characterized in that: Includes a base (1) and an automatic feeding mechanism (3); Base (1): A sanding mechanism (2) is provided on its upper end. The sanding mechanism (2) includes an end cap (21) and a sanding cylinder (23). A sanding cylinder (23) is provided on the right side of the front side of the base (1). The end cap (21) is fixedly connected to the front end of the sanding cylinder (23). The lower end of the sanding cylinder (23) is provided with support columns (4) symmetrically distributed on the left and right. Automatic delivery mechanism (3): It includes support wheels (31), mounting frame (32), rotating shaft (36) and drive wheel (37). The left and right sides of the front end of the base (1) are rotatably connected to the evenly distributed support wheels (31) through rotating seats. The support column (4) is slidably connected to the inner arc surface of the vertically adjacent support wheels (31). The bottom wall of the base (1) is fixedly connected to the mounting frame (32). The upper and lower ends of the mounting frame (32) are rotatably connected to three evenly distributed rotating shafts (36). The left and right ends of the rotating shaft (36) are fixedly fitted with drive wheels (37). The rear end of the support column (4) is slidably connected between two vertically adjacent drive wheels (37) on the same left and right sides.

2. The sand mill for producing raw materials for fireproof coatings according to claim 1, characterized in that: It also includes a control switch group (6), which is disposed on the upper surface of the base (1), and the input end of the control switch group (6) is electrically connected to an external power source.

3. The sand mill for producing raw materials for fireproof coatings according to claim 2, characterized in that: The grinding mechanism (2) also includes a shearing cylinder (22), an eccentric grinding wheel (24), and a grinding shaft (25). The grinding shaft (25) is rotatably connected to the right end of the front side of the base (1). The grinding shaft (25) is provided with evenly distributed eccentric grinding wheels (24) in the middle. The installation angle of the eccentric grinding wheels (24) increases by 90° from front to back. The front end of the grinding shaft (25) is provided with a shearing cylinder (22). Both the shearing cylinder (22) and the eccentric grinding wheel (24) are located inside the grinding cylinder (23).

4. The sand mill for producing raw materials for fireproof coatings according to claim 3, characterized in that: The grinding mechanism (2) also includes a motor (26), a pulley (27) and a pulley (28). The rear end of the grinding shaft (25) is fixedly fitted with pulley (27). The left end of the front side of the base (1) is fixedly connected to the motor (26). The right end of the output shaft of the motor (26) is fixedly fitted with pulley (28). The pulley (28) and pulley (27) are connected by belt drive. The input end of the motor (26) is electrically connected to the output end of the control switch group (6).

5. A sand mill for producing raw materials for fire-retardant coatings according to claim 2, characterized in that: The automatic delivery mechanism (3) also includes a synchronous pulley (33), a gear (34) and a second motor (38). The right end of the rotating shaft (36) in the middle is fixedly fitted with a gear (34), and two vertically adjacent gears (34) are meshed together. The left end of the rotating shaft (36) is fixedly fitted with a synchronous pulley (33), and two adjacent synchronous pulleys (33) are connected by a synchronous belt drive. The right side of the mounting bracket (32) is fixedly connected with the second motor (38). The output shaft of the second motor (38) is fixedly connected to the rotating shaft (36) at the upper middle part. The input end of the second motor (38) is electrically connected to the output end of the control switch group (6).

6. The sand mill for producing raw materials for fireproof coatings according to claim 5, characterized in that: The automatic feeding mechanism (3) further includes a tensioning assembly (35), which includes a pressure wheel (351), a lead screw (352), an adjusting wheel (353), a lead screw (354), and a slider (355). The bottom wall of the mounting frame (32) is fixedly connected with mounting seats symmetrically distributed front and rear. The mounting seats are located between two adjacent rotating shafts (36). The left side of each mounting seat is rotatably connected to a lead screw (352), and the right side of each mounting seat is rotatably connected to a lead screw (354). A slider (355) is arranged vertically between the lead screw (352) and the lead screw (354) located on the same mounting seat. The left end of each slider (355) is rotatably connected to a pressure wheel (351). The outer arc surface of the pressure wheel (351) contacts the surface of the vertically adjacent belt. The upper end of the first screw (352) located on the same mounting base is threadedly connected to the left end of the upper slider (355). The lower end of the first screw (352) located on the same mounting base is slidably connected to the inside of the through hole one at the left end of the lower slider (355). The lower end of the second screw (354) located on the same mounting base is threadedly connected to the right end of the lower slider (355). The upper end of the second screw (354) located on the same mounting base is slidably connected to the inside of the through hole two at the right end of the upper slider (355). The upper ends of the first screw (352) and the second screw (354) are both fixedly fitted with adjusting wheels (353).

7. A sand mill for producing raw materials for fire-retardant coatings according to claim 1, characterized in that: A collection trough (5) is placed at the front end of the base (1), and the collection trough (5) is located at the lower end of the grinding cylinder (23).

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