Long-service-life internal scraper device of precoated sand mixer

Abstract

The long-service-life internal scraper device of the precoated sand mixer comprises a sand mixer base, a rotating mechanism is installed on the sand mixer base, a sand mixer outer body is arranged on the sand mixer base above the rotating mechanism, a rotating shaft is installed in the sand mixer outer body, a runner wheel mechanism is arranged on the rotating shaft, a scraper mechanism is installed beside the runner wheel mechanism, and the runner wheel mechanism is connected with the scraper mechanism. According to the utility model, the sand mixer internal scraper blade is newly arranged in the sand mixer, so that the transverse extrusion force of the runner wheel mechanism is reduced, the service life of the runner wheel is greatly prolonged, and the original shape and angle of the bottom scraper blade are changed; and meanwhile, wear-resistant strips are welded on the bottom scraping plate and the vertical surface scraping plate, so that the service cycle is prolonged by more than 50%, and the overall scraping efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coated sand production, in particular to an internal scraper device of a coated sand mixer with a long service life. Background Art

[0002] The sand mixer utilizes the relative movement between the rolling wheel and the cylinder to crush the material in the cylinder by rolling and grinding it. The sand mixer has the function of stirring while rolling the material, so that the material is mixed. However, when the rolling wheel rolls the material, part of the material will stick to the rolling wheel. The existing method is to set a relatively fixed scraper to scrape the rolling wheel, so as to separate the material on the rolling wheel. In order to ensure that the material on the rolling wheel can be scraped quickly, the scraper is required to fit completely with the curved surface of the rolling wheel. If the scraper is installed at an angle, it can only scrape off part of the material on the rolling wheel, and the material on the rolling wheel cannot be scraped off completely. In addition, even if the scraper fits completely with the curved surface of the rolling wheel, the scraper will be worn to a certain extent after being used for a period of time, affecting the scraping efficiency.

[0003] Therefore, in view of the shortcomings of the prior art, it is necessary to provide an internal scraper device of a coated sand mixer with a long service life to solve the shortcomings of the prior art. Utility Model Content

[0004] The purpose of the utility model is to avoid the shortcomings of the prior art and provide an internal scraper device for a coated sand mixer with a long service life. By installing a new internal scraper of the sand mixer in the sand mixer, the lateral extrusion force of the grinding wheel mechanism is reduced, the service life of the grinding wheel is greatly increased, the bottom scraper also changes its original shape and angle to fit the pot wall more closely. At the same time, wear-resistant strips are welded on the bottom scraper and the vertical scraper, and the service life is increased by more than 50%, which improves the overall scraping efficiency.

[0005] The above-mentioned purpose of the utility model is achieved through the following technical means.

[0006] Provided is an internal scraper device for a long-life coated sand mixer, comprising a mixer base, a rotating mechanism installed on the mixer base, an outer body of the mixer arranged on the mixer base above the rotating mechanism, a rotating shaft installed inside the outer body of the mixer, a rolling wheel mechanism arranged on the rotating shaft, and a scraper mechanism installed beside the rolling wheel mechanism;

[0007] The scraper mechanism includes a bottom scraper and an inner vertical scraper. The bottom scraper includes a connecting plate, which is obliquely mounted on the roller mechanism, and a cleaning scraper is mounted on the connecting plate.

[0008] The internal facade scraper comprises an extension rod, which is fixed to the top of the rolling wheel mechanism through two groups of limit blocks, and a scraper plate is arranged at the end of the extension rod.

[0009] Specifically, the grinding wheel mechanism includes a shaft sleeve, a rotating disk is mounted on the shaft sleeve, and two groups of internal grinding wheels are respectively arranged on the rotating disk.

[0010] Specifically, wear-resistant strips are installed on the scraper plate and the cleaning scraper plate.

[0011] Specifically, the rotating mechanism comprises a sand mixer reducer, the sand mixer reducer is rotatably connected with a rotating main shaft, a fixed block is installed on the rotating main shaft, and the top end of the rotating main shaft is fixedly connected with the outer body of the sand mixer.

[0012] Specifically, the scraper plate is perpendicular to the inner wall of the outer body of the sand mixer, and the scraper plate is higher than the cleaning scraper plate.

[0013] The utility model reduces the lateral extrusion force of the grinding wheel mechanism and greatly increases the service life of the grinding wheel by newly installing an internal scraper in the sand mixer. The bottom scraper also changes its original shape and angle to fit the pot wall more closely. At the same time, wear-resistant strips are welded on the bottom scraper and the vertical scraper, increasing the service life by more than 50% and improving the overall scraping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0015] Figure 1 It is a front view of an internal scraper device of a long-life coated sand mixer of the utility model.

[0016] Figure 2 The utility model is a top view of an internal scraper device of a long-life coated sand mixer.

[0017] from Figure 1 to Figure 2 Including:

[0018] 1. Sand mixer base;

[0019] 2. Rotation mechanism;

[0020] 3. Sand mixer outer body;

[0021] 4. Rotation axis;

[0022] 5. Rolling wheel mechanism;

[0023] 6. Scraper mechanism;

[0024] 7. Bottom scraper;

[0025] 8. Facade scraper;

[0026] 9. Connecting plate;

[0027] 10. Clean the scraper;

[0028] 11. Extension rod;

[0029] 12. Limit block;

[0030] 13. Scraper plate;

[0031] 14. Bushing;

[0032] 15. Turn the plate;

[0033] 16. Rolling wheel;

[0034] 17. Wear-resistant strips;

[0035] 18. Reducer;

[0036] 19. Rotating spindle;

[0037] 20. Fixed block. DETAILED DESCRIPTION

[0038] The utility model is further described in conjunction with the following embodiments.

[0039] Example 1.

[0040] like Figure 1-2 As shown, an internal scraper device of a long-life coated sand mixer comprises a sand mixer base 1, a rotating mechanism 2 is installed on the sand mixer base 1, a sand mixer outer body 3 is arranged on the sand mixer base 1 above the rotating mechanism 2, a rotating shaft 4 is installed inside the sand mixer outer body 3, a grinding wheel mechanism is arranged on the rotating shaft 4, and a scraper mechanism 6 is installed beside the grinding wheel mechanism.

[0041] The rotating mechanism 2 arranged on the sand mixer base 1 can rotate and cooperate with the internal grinding wheel mechanism to grind and mix the coated sand. At the same time, during the sand mixing process, the scraper mechanism 6 arranged next to the grinding wheel mechanism can scrape off the coated sand from the sand mixer outer body 3 to improve the processing efficiency of the coated sand.

[0042] The scraper mechanism 6 includes a bottom scraper 7 and an internal vertical scraper 8. The bottom scraper 7 includes a connecting plate 9. The connecting plate 9 is obliquely installed on the grinding wheel mechanism. A cleaning scraper 10 is installed on the connecting plate 9. The bottom scraper 7 can scrape materials from the bottom of the sand mixer outer body 3, and the vertical scraper 8 can cooperate with the grinding wheel mechanism and the sand mixer outer cover to scrape materials. The obliquely installed connecting plate 9 can completely fit the cleaning scraper 10 to the bottom of the sand mixer outer body 3, and can perform scraping during rotation.

[0043] The internal vertical scraper 8 includes an extension rod 11, which is fixed to the top of the grinding wheel mechanism by two sets of limit blocks 12. A scraper plate 13 is arranged at the end of the extension rod 11. The extension rod 11 is arranged higher than the connecting plate 9 so that the scraper plate 13 can be extended to the inner wall of the sand mixer outer body 3, and can also perform scraping processing during rotation.

[0044] The grinding wheel mechanism includes a shaft sleeve 14, on which a rotating disk 15 is mounted, on which two groups of internal grinding wheels 16 are respectively arranged. The rotating disk 15 mounted on the shaft sleeve 14 can rotate in coordination with the grasping mechanism to drive the two groups of internal grinding wheels 16 to rotate.

[0045] Wear-resistant strips 17 are installed on both the scraper plate 13 and the cleaning scraper plate 10. The installation of the wear-resistant strips 17 can reduce wear and tear while increasing the degree of fit to ensure the efficiency of scraper use.

[0046] The rotating mechanism 2 includes a sand mixer reducer 18, on which a rotating main shaft 19 is rotatably connected, on which a fixed block 20 is installed, and the top of the rotating main shaft 19 is fixedly connected to the sand mixer outer body 3. The rotating main shaft 19 is fixedly connected to the sand mixer outer body 3 through the fixed block 20, and the rotating main shaft 19 is driven to rotate by the reducer 18 arranged at the bottom.

[0047] The scraper plate 13 is perpendicular to the inner wall of the sand mixer outer body 3 and is higher than the cleaning scraper plate 10. The two groups of scraper plates 13 and the cleaning scraper plate 10 can fully cover the inner wall of the sand mixer outer body 3 to improve the scraping efficiency.

[0048] During the production process, the internal scraper of the sand mixer is newly installed in the sand mixer, which reduces the lateral extrusion force of the grinding wheel mechanism and greatly increases the service life of the grinding wheel. The bottom scraper 7 also changes its original shape and angle to fit the pot wall more closely. At the same time, the bottom scraper 7 and the vertical scraper 8 are welded with wear-resistant strips 17, which increases the service life by more than 50%, improving the overall scraping efficiency.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. An internal scraper device for a long-life coated sand mixer, characterized in that: It comprises a sand mixer base, a rotating mechanism is installed on the sand mixer base, a sand mixer outer body is arranged on the sand mixer base above the rotating mechanism, a rotating shaft is installed inside the sand mixer outer body, a rolling wheel mechanism is arranged on the rotating shaft, and a scraper mechanism is installed beside the rolling wheel mechanism; The scraper mechanism comprises a bottom scraper and an inner vertical scraper, the bottom scraper comprises a connecting plate, the connecting plate is obliquely mounted on the roller mechanism, and a cleaning scraper is mounted on the connecting plate; The internal facade scraper comprises an extension rod, the extension rod is fixed to the top of the rolling wheel mechanism through two groups of limit blocks, and a scraper plate is arranged at the end of the extension rod.

2. The internal scraper device of the long-life coated sand mixer according to claim 1 is characterized by: The grinding wheel mechanism comprises a shaft sleeve, a rotating disk is mounted on the shaft sleeve, and two groups of internal grinding wheels are respectively arranged on the rotating disk.

3. The internal scraper device of the long-life coated sand mixer according to claim 2 is characterized by: The scraper plate and the cleaning scraper plate are both provided with wear-resistant strips.

4. The internal scraper device of the long-life coated sand mixer according to claim 3 is characterized by: The rotating mechanism comprises a sand mixer reducer, the sand mixer reducer is rotatably connected with a rotating main shaft, a fixing block is installed on the rotating main shaft, and the top end of the rotating main shaft is fixedly connected with the sand mixer outer body.

5. The internal scraper device of the long-life coated sand mixer according to claim 4 is characterized by: The scraper plate is perpendicular to the inner wall of the outer body of the sand mixer, and the scraper plate is higher than the cleaning scraper plate.

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