Flour mill capable of increasing yield of polyvinyl alcohol

Abstract

The utility model relates to the technical field of polyvinyl alcohol, in particular to a flour mill capable of improving the yield of polyvinyl alcohol, which comprises a flour milling box, a motor is fixedly mounted at the top end of the flour milling box, a milling chamber is arranged in the flour milling box, and a milling disc is arranged at one end, positioned in the milling chamber, of an output shaft of the motor. The two sides, close to the motor, of the grinding box communicate with feeding openings. The grinding box, the grinding chamber, the motor, the grinding disc, the lifting table, the second electric push rods and the edge block are used in cooperation, the two second electric push rods drive the edge block to descend after being started, the lifting table is driven to descend synchronously when the edge block descends, and therefore a grinding gap between the grinding disc and the lifting table is enlarged; the grinding gap between the grinding disc and the lifting table is shrunk, and the grinding gap is adjusted during working, so that a large amount of time can be saved, and the yield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyvinyl alcohol, in particular to a grinding machine for improving the output of polyvinyl alcohol. Background Art

[0002] Polyvinyl alcohol is an organic compound with the appearance of white flake, flocculent or powdery solid. It is odorless, soluble in water, slightly soluble in dimethyl sulfoxide, and insoluble in gasoline, kerosene, vegetable oil, benzene, toluene, ethylene dichloride, carbon tetrachloride, acetone, ethyl acetate, methanol, ethylene glycol, etc. Polyvinyl alcohol is an important chemical raw material used in the manufacture of polyvinyl acetal, gasoline-resistant pipes and vinylon, fabric treating agents, emulsifiers, paper coatings, adhesives, glues, etc.

[0003] When processing polyvinyl alcohol, a grinding mill is required for grinding. The existing polyvinyl alcohol grinding mills on the market are generally unable to adjust the grinding gap during the grinding process. The equipment needs to be shut down and then the grinding gap is changed by adjusting the height of the grinding disc. Only in this way can the specifications of the polyvinyl alcohol after grinding be adjusted. However, shutdown adjustment will affect processing efficiency and thus reduce output. For this reason, we propose a grinding mill that increases the output of polyvinyl alcohol. Utility Model Content

[0004] The utility model aims to provide a grinding machine for improving the output of polyvinyl alcohol, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A mill for increasing the yield of polyvinyl alcohol, comprising

[0007] A grinding box, wherein a motor is fixedly mounted on the top of the grinding box, a grinding chamber is provided inside the grinding box, a grinding disc is provided at one end of the output shaft of the motor located inside the grinding chamber, and both sides of the grinding box close to the motor are connected with a feeding port;

[0008] A lifting platform is movably installed at the bottom of the grinding box near the grinding disc, and adjustment mechanisms are arranged on both sides of the lifting platform, and the adjustment mechanisms include side grooves, side blocks and a second electric push rod;

[0009] A screening mechanism is arranged inside the middle of the grinding box. The screening mechanism comprises a transmission shaft, a material-diverting plate and a screening plate. The transmission shaft is fixedly connected to the bottom axis of the grinding disc.

[0010] Preferably, the grinding box is provided with side grooves on both inner walls of the middle part of the grinding chamber, side blocks are fixedly connected to both sides of the grinding disc, and the two side blocks are slidably connected to the side grooves. The grinding box is provided with second electric push rods at the tops of the two side grooves, and the output shafts of the two second electric push rods are respectively connected to the two side blocks.

[0011] Preferably, a material-shifting plate is arranged at one end of the middle part of the transmission shaft located at the lifting platform, a sieve plate is arranged at the bottom end of the middle part of the lifting platform, and the lower surface of the material-shifting plate is slidably connected with the upper surface of the sieve plate;

[0012] Preferably, a material discharge pipe is fixedly installed in the middle and both sides of the bottom end of the grinding chamber, a material guide pipe is fixedly connected to the middle and both lower surfaces of the lifting platform, the material guide pipe is movably connected to the outer side of the material discharge pipe through a spring, and material guide grooves are arranged on both sides and the bottom of the lifting platform near the material stripping plate, and the three material guide grooves are respectively connected to the three material guide pipes;

[0013] Preferably, chucks are provided on both sides of the top of the lifting platform close to the material stripping plate, a fixed column is fixedly installed in the middle of the transmission shaft, and semicircular grooves are provided on one side of the two chucks close to the fixed column, and a first electric push rod is provided on the other side of the lifting platform close to the chuck, and the output shaft of the first electric push rod is fixedly connected to the side of the chuck away from the fixed column;

[0014] Preferably, both the upper surface of the lifting platform and the outer surface of the grinding disc are provided with a grinding layer.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. A mill for increasing the yield of polyvinyl alcohol, wherein a mill box, a grinding chamber, a motor, a grinding disc, a lifting platform, a second electric push rod and a side block are used in coordination with each other. After the two second electric push rods are started, the side blocks are driven to descend, and when the side blocks descend, the lifting platform is driven to descend synchronously, so that the grinding gap between the grinding disc and the lifting platform is increased. Conversely, when the lifting platform is raised, the grinding gap between the grinding disc and the lifting platform is reduced. The grinding gap is adjusted during operation, which can save a lot of time and thus increase the yield.

[0017] 2. A grinding mill for increasing the yield of polyvinyl alcohol is used in coordination with a lifting platform, a transmission shaft, a material-discharging plate, a screen plate and a motor. After grinding, two first electric push rods are started. After the two first electric push rods are started, the chuck is driven to retract from the outer side of the fixed column. At the same time, the grinding disc drives the transmission shaft to rotate. After the transmission shaft rotates, the material-discharging plate on one side of the bottom end is driven to scratch the material that falls into the top of the screen plate. Qualified materials pass through the screen plate and fall down, while unqualified materials enter the material guide trough, thereby achieving the purpose of facilitating screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall main structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 The enlarged schematic diagram of point A in the middle;

[0021] Figure 4 For this utility model Figure 2 A magnified schematic diagram of point B in the middle.

[0022] In the figure: 1. grinding box; 2. motor; 3. grinding chamber; 4. grinding disc; 5. lifting platform; 6. adjusting mechanism; 601. side groove; 602. side block; 603. second electric push rod; 7. screening mechanism; 701. transmission shaft; 702. material prying plate; 703. sieve plate; 8. feeding pipe; 9. material guide pipe; 10. spring; 11. material guide groove; 12. chuck; 13. fixing column; 14. semicircular groove; 15. first electric push rod; 16. feeding port. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0025] like Figure 1-4 As shown, a technical solution provided by the utility model:

[0026] A mill for increasing the yield of polyvinyl alcohol, comprising a milling box 1, a motor 2 is fixedly mounted on the top of the milling box 1, a grinding chamber 3 is provided inside the milling box 1, an output shaft of the motor 2 is located inside the grinding chamber 3, a grinding disc 4 is provided at one end thereof, both sides of the milling box 1 near the motor 2 are connected with a feeding port 16; a lifting platform 5 is movably mounted on the bottom of the milling box 1 near the grinding disc 4, a grinding layer is provided on the upper surface of the lifting platform 5 and the outer surface of the grinding disc 4, and an adjusting mechanism 6 is provided on both sides of the lifting platform 5, the adjusting mechanism 6 comprises an edge groove 601, an edge block 602 and a second electric Push rod 603; a screening mechanism 7 is arranged on the inner side of the middle part of the grinding box 1, and the screening mechanism 7 includes a transmission shaft 701, a material-dispensing plate 702 and a sieve plate 703. The transmission shaft 701 is fixedly connected to the bottom axis of the grinding disc 4. The grinding box 1 is located at the inner wall of both sides of the middle part of the grinding chamber 3, and side blocks 602 are fixedly connected to both sides of the grinding disc 4. The two side blocks 602 are slidably connected to the side grooves 601. The grinding box 1 is provided with a second electric push rod 603 at the top of the two side grooves 601, and the output shafts of the two second electric push rods 603 are respectively connected to the two side blocks 602;

[0027] In this embodiment, if it is necessary to adjust the distance between the grinding disc 4 and the lifting platform 5 during the grinding process, the second electric push rods 603 on both sides of the grinding box 1 are controlled to start at the same time. After the two second electric push rods 603 are started, they drive the side blocks 602 to descend. When the side blocks 602 descend, they drive the lifting platform 5 to descend synchronously. In this way, the grinding gap between the grinding disc 4 and the lifting platform 5 increases. Conversely, when the lifting platform 5 is raised, the grinding gap between the grinding disc 4 and the lifting platform 5 decreases. The grinding gap is adjusted during work, which can save a lot of time and thus increase production.

[0028] like Figure 3 As shown, a material-shifting plate 702 is provided at one end of the middle of the lifting platform 5 at the transmission shaft 701, a sieve plate 703 is provided at the bottom end of the middle of the lifting platform 5, and the lower surface of the material-shifting plate 702 is slidably connected to the upper surface of the sieve plate 703;

[0029] In this embodiment, after grinding, the two first electric push rods 15 are started. After the two first electric push rods 15 are started, the chuck 12 is driven to retract from the outer side of the fixed column 13. At the same time, the grinding disc 4 drives the transmission shaft 701 to rotate. After the transmission shaft 701 rotates, it drives the material stripping plate 702 on one side of the bottom end to scrape the material that falls into the top of the screen plate 703. Qualified materials pass through the screen plate 703 and fall down, while unqualified materials enter the material guide trough 11, thereby achieving the purpose of facilitating screening.

[0030] like Figure 3As shown, a feed pipe 8 is fixedly installed at the middle of the bottom end and both sides of the grinding chamber 3, and a feed guide pipe 9 is fixedly connected to the middle and lower surfaces of both sides of the lifting platform 5. The feed guide pipe 9 is movably connected to the outer side of the feed pipe 8 through a spring 10. The lifting platform 5 is provided with a feed guide groove 11 on both sides and the bottom close to the material diverting plate 702, and the three feed guide grooves 11 are respectively connected to the three feed guide pipes 9;

[0031] In this embodiment, when the height of the lifting platform 5 is adjusted, the feed pipe 8 and the guide pipe 9 are slidably connected and elastically reset by the spring 10, and qualified materials and unqualified materials are discharged from the bottom ends of the middle and both side feed pipes 8 respectively.

[0032] like Figure 3 As shown, chucks 12 are arranged on both sides of the top of the lifting platform 5 close to the material stripping plate 702, a fixed column 13 is fixedly installed in the middle of the transmission shaft 701, and semicircular grooves 14 are opened on one side of the two chucks 12 close to the fixed column 13, and a first electric push rod 15 is arranged on the other side of the lifting platform 5 close to the chuck 12, and the output shaft of the first electric push rod 15 is fixedly connected to the side of the chuck 12 away from the fixed column 13;

[0033] In this embodiment, when the first electric push rod 15 controls the semicircular groove 14 on one side of the chuck 12 to be clamped on the outer side of the fixed column 13, the middle position of the lifting platform 5 is blocked, so that materials cannot enter. When unloading is required, the first electric push rod 15 is controlled to retract the chuck 12.

[0034] Working principle: During operation, the polyvinyl alcohol raw material is placed into the grinding chamber 3 from the position of the loading port 16, and then the motor 2 is started. The motor 2 controls the grinding disc 4 and the lifting platform 5 to grind the raw material. If it is necessary to adjust the distance between the grinding disc 4 and the lifting platform 5 during the grinding process, the second electric push rods 603 on both sides of the powder grinding box 1 are controlled to start at the same time. After the two second electric push rods 603 are started, the side blocks 602 are driven to descend. When the side blocks 602 descend, the lifting platform 5 is driven to descend synchronously, so that the grinding gap between the grinding disc 4 and the lifting platform 5 is increased. On the contrary, when the lifting platform 5 is raised, the grinding gap between the grinding disc 4 and the lifting platform 5 is reduced, and the grinding is completed. After grinding, the two first electric push rods 15 are started. After the two first electric push rods 15 are started, the chuck 12 is driven to retract from the outer side of the fixed column 13. At the same time, the grinding disc 4 drives the transmission shaft 701 to rotate. After the transmission shaft 701 rotates, it drives the material stripping plate 702 on one side of the bottom to scrape the material that falls into the top of the sieve plate 703. Qualified materials pass through the sieve plate 703 and fall down, while unqualified materials enter the material guide trough 11. When adjusting the height of the lifting platform 5, the feed pipe 8 and the guide pipe 9 are slidably connected and elastically reset by the spring 10. Qualified materials and unqualified materials will be discharged from the bottom of the middle and both sides of the feed pipe 8 respectively.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A mill for increasing the yield of polyvinyl alcohol, characterized in that: include A grinding box (1), wherein a motor (2) is fixedly mounted on the top of the grinding box (1), a grinding chamber (3) is provided inside the grinding box (1), an output shaft of the motor (2) is located inside the grinding chamber (3), a grinding disc (4) is provided at one end thereof, and both sides of the grinding box (1) close to the motor (2) are connected to a feeding port (16); A lifting platform (5) is movably installed at the bottom of the grinding box (1) near the grinding disc (4), and adjustment mechanisms (6) are arranged on both sides of the lifting platform (5), and the adjustment mechanism (6) includes a side groove (601), a side block (602) and a second electric push rod (603); A screening mechanism (7) is arranged on the inner side of the middle part of the grinding box (1), and the screening mechanism (7) comprises a transmission shaft (701), a material shifting plate (702) and a screening plate (703), and the transmission shaft (701) is fixedly connected to the bottom axis of the grinding disc (4).

2. A mill for increasing the yield of polyvinyl alcohol according to claim 1, characterized in that: The grinding box (1) is provided with side grooves (601) on both inner walls of the middle part of the grinding chamber (3); both sides of the grinding disc (4) are fixedly connected with side blocks (602); the two side blocks (602) are slidably connected with the side grooves (601); the grinding box (1) is provided with second electric push rods (603) near the top of the two side grooves (601); the output shafts of the two second electric push rods (603) are respectively connected with the two side blocks (602).

3. A mill for increasing the yield of polyvinyl alcohol according to claim 1, characterized in that: A material shifting plate (702) is arranged at one end of the middle part of the transmission shaft (701) located on the lifting platform (5), and a sieve plate (703) is arranged at the bottom end of the middle part of the lifting platform (5), and the lower surface of the material shifting plate (702) is slidably connected to the upper surface of the sieve plate (703).

4. A mill for increasing the yield of polyvinyl alcohol according to claim 1, characterized in that: A material discharge pipe (8) is fixedly installed in the middle of the bottom end and on both sides of the grinding chamber (3); a material guide pipe (9) is fixedly connected to the middle and lower surfaces of both sides of the lifting platform (5); the material guide pipe (9) is movably connected to the outer side of the material discharge pipe (8) via a spring (10); and material guide grooves (11) are arranged on both sides and the bottom end of the lifting platform (5) near the material removal plate (702); and the three material guide grooves (11) are respectively connected to the three material guide pipes (9).

5. A mill for increasing the yield of polyvinyl alcohol according to claim 1, characterized in that: The lifting platform (5) is provided with chucks (12) on both sides of the top end close to the material stripping plate (702), a fixing column (13) is fixedly installed in the middle of the transmission shaft (701), and a semicircular groove (14) is provided on one side of the two chucks (12) close to the fixing column (13), and a first electric push rod (15) is provided on the other side of the lifting platform (5) close to the chuck (12), and the output shaft of the first electric push rod (15) is fixedly connected to the side of the chuck (12) away from the fixing column (13).

6. A mill for increasing the yield of polyvinyl alcohol according to claim 1, characterized in that: The upper surface of the lifting platform (5) and the outer surface of the grinding disc (4) are both provided with a grinding layer.

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