Rotor blade structure for sand mixer

Abstract

The utility model discloses a rotor blade structure for a sand mixer, and relates to the technical field of resin sand production, the rotor blade structure comprises a rotor main body, a blade assembly is arranged on the rotor main body, and the blade assembly is used for uniformly mixing sand grains. The blade assembly comprises an installation column arranged outside the rotor body in a sleeving mode and a blade body connected to the outer portion of the installation column in a sleeving mode, a connecting ring is connected between the blade body and the installation column in a sleeving mode, and an installation ring matched with the blade body is installed on the connecting ring. The blade assembly further comprises a fixing ring fixed to one end of the rotor body and a sand scraping ring fixed to one end of the fixing ring. According to the utility model, through the arrangement of the blade assembly, the resin sand can be uniformly mixed, and the dead angles of the mixing area in the sand mixer can be reduced, so that the problem that the sand mixing is not uniform enough due to the fact that the blades in the existing rotor blade structure cannot cover all the areas in the sand mixer is solved, and the sand mixing efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of resin sand production, in particular to a rotor blade structure for a sand mixer. Background Art

[0002] A sand mixer is a device that mixes the components of molding sand evenly and effectively and evenly coats the surface of the sand particles with the binder. It is a sand processing equipment widely used in the foundry industry. In the production of resin sand, the sand particles are generally mixed by the rotation of the rotor blades in the sand mixer to generate corresponding friction and shear force between the sand particles for subsequent processing.

[0003] In the Chinese patent with publication number CN212663452U, a rotor blade structure for a sand mixer is disclosed, which comprises a driven rod, a slave bevel gear, a main bevel gear, a worm gear, a bidirectional threaded rod, a worm, a fixing groove, a fixing block, a clamping groove, a screw barrel and a fixing plate to form a fixing device, so that when the rotor blade is damaged, the operation of replacing the rotor blade is simplified, saving people's time and energy; although the above-mentioned rotor blade structure solves the problem of replacing the rotor blade, in actual use, the above-mentioned rotor blade structure realizes sand mixing by rotation between the blade and the rotating shaft, but in the existing rotor blade structure, the blade cannot cover all areas in the sand mixer, so that the sand mixing is not uniform enough, thereby increasing the sand mixing time, reducing the sand mixing efficiency, and affecting the practicality of the rotor blade structure.

[0004] Therefore, it is necessary to improve the prior art to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model aims to provide a rotor blade structure for a sand mixer, which solves the problem that the blades in the existing rotor blade structure cannot cover all areas in the sand mixer, resulting in uneven sand mixing.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a rotor blade structure for a sand mixer, comprising a rotor body, on which a blade assembly is arranged, the blade assembly is used to mix sand particles evenly, the blade assembly comprises a mounting column sleeved on the outside of the rotor body and a blade body sleeved on the outside of the mounting column, a connecting ring is sleeved between the blade body and the mounting column, and a mounting ring matched with the blade body is installed on the connecting ring.

[0008] Furthermore, the blade assembly also includes a fixing ring fixed at one end of the rotor body and a scraping ring fixed at one end of the fixing ring, a plurality of scrapers are fixed to one end of the fixing ring adjacent to the scraping ring, and a mixing chamber is formed between the plurality of scrapers and the scraping ring; through the arrangement of the scraping ring and the scraper, the resin sand is layered and blocked, the resin sand at the bottom of the sand mixer is stirred and mixed, the position of the resin sand is constantly changed, and the flow of the resin sand in the sand mixer is enhanced.

[0009] Furthermore, a plurality of scraping plates are fixed to the outside of the blade body, and the plurality of scraping plates are arranged in a circular array; through the arrangement of the scraping plates, the resin sand is located in the sand mixer and contacts the scraping plates under the action of centrifugal force, so that the scraping plates are located in the sand mixer and scrape between the resin sand, and the resin sand is violently stirred, thereby mixing it.

[0010] Furthermore, a positioning groove is formed on the outside of the installation column, and a positioning block matching with the positioning groove is fixed on the connecting ring.

[0011] Furthermore, an installation component is arranged between the mounting ring and the blade body, and the installation component includes a stabilizing ring fixed on the blade body and a guide block fixed on the mounting ring, a guide groove matching with the guide block is opened on one side of the stabilizing ring, and a locking component fixing it to the guide groove is arranged on one side of the guide block.

[0012] Furthermore, the locking assembly includes a screw hole provided on one side of the guide block and a threaded hole provided in the guide groove, a fixing column is threadedly provided on the guide block, and the fixing column is screwed into the threaded hole corresponding to the screw hole through the screw hole.

[0013] Furthermore, a fixing cap is fixed to one end of the fixing column, and a protective ring is installed on the outside of the fixing cap. The setting of the fixing cap makes it easier for the user to apply force when holding and rotating, thereby increasing the torque when the fixing cap rotates, thereby achieving the purpose of speeding up the assembly or disassembly operation.

[0014] The utility model has the following beneficial effects:

[0015] 1. When the utility model is in use, the arrangement of the blade assembly can achieve uniform mixing of the resin sand, which is beneficial to reducing the dead angle of the mixing area in the sand machine, thereby solving the problem that the blades in the existing rotor blade structure cannot cover all areas in the sand mixer, resulting in uneven sand mixing. The sand mixing time can be effectively shortened, the sand mixing efficiency is improved, and the practicality of the rotor blade structure is greatly improved, which facilitates the use of the rotor blade structure.

[0016] 2. When the utility model is in use, the installation components can be set to achieve the effect of precise positioning and installation of the blade body, thereby greatly improving the installation efficiency of the blade body, saving time and effort, and further improving the practicality of the rotor blade structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

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

[0019] Figure 2 This is a schematic diagram of the structure of the blade assembly of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the installation assembly of the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] In the figure: 1. rotor body; 2. blade assembly; 21. mounting post; 22. connecting ring; 23. mounting ring; 24. blade body; 25. scraper plate; 26. fixing ring; 27. scraper ring; 28. scraper; 4. mounting assembly; 41. guide block; 42. screw hole; 43. fixing post; 44. fixing cap; 45. guide groove; 46. stabilizing ring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] The utility model provides Figure 1 and Figure 2 The rotor blade structure for a sand mixer shown in the figure comprises a rotor body 1, on which a blade assembly 2 is arranged, and the blade assembly 2 is used to mix sand particles uniformly. The blade assembly 2 comprises a mounting column 21 sleeved on the outside of the rotor body 1 and a blade body 24 sleeved on the outside of the mounting column 21, and a connecting ring 22 is sleeved between the blade body 24 and the mounting column 21, and a mounting ring 23 matched with the blade body 24 is installed on the connecting ring 22; the blade assembly 2 also comprises a fixing ring 26 fixed to one end of the rotor body 1 and a sand scraping ring 27 fixed to one end of the fixing ring 26, and a plurality of scraping blades 28 are fixed to one end of the fixing ring 26 adjacent to the sand scraping ring 27, and a mixing chamber is formed between the plurality of scraping blades 28 and the sand scraping ring 27; a plurality of sand scraping plates 25 are also fixed to the outside of the blade body 24, and the plurality of sand scraping plates 25 are arranged in a ring array.

[0025] As can be seen from the above, when in use, when the sand mixer is working, the rotor body 1 rotates clockwise, at this time, the blade body 24 rotates counterclockwise along the rotor body 1 while the blade body 24 rotates clockwise in the sand mixer, and at the same time, the rotation speeds of the rotor body 1 and the blade body 24 are different, so that swirl and radial-axial motion are generated, thereby forcibly mixing and dispersing the material, which is used to continuously change the motion trajectory of the material, thereby generating friction and shearing effects with the material, and the resin sand is located in the sand mixer and contacts with the scraper plate 25 under the action of centrifugal force, so that the scraper plate 25 is located in the sand mixer and scrapes between the resin sand, and the resin sand is strongly turned over, thereby mixing it, and the scraper 28 and the scraper ring 27 are used to mix the material at the bottom of the sand mixer, and then the blade assembly 2 continuously changes the position of the material under continuous rotation, which can reduce the dead angle of the mixing area in the sand mixer and make the material evenly mixed, thereby solving the problem that the existing blades cannot cover all areas in the sand mixer and make the sand mixing not uniform, effectively reducing the sand mixing time and improving the practicality of the rotor blade structure.

[0026] Furthermore, a positioning groove is provided on the outside of the mounting column 21, and a positioning block matching the positioning groove is fixed on the connecting ring 22; based on this, through the setting of the positioning groove and the positioning block, it can play a limiting role when the connecting ring 22 moves along the mounting column 21, preventing the connecting ring 22 from shifting, and ensuring the stable movement of the connecting ring 22.

[0027] In addition, refer to Figure 1-Figure 3 As shown, a mounting assembly 4 is arranged between the mounting ring 23 and the blade body 24, and the mounting assembly 4 includes a stabilizing ring 46 fixed on the blade body 24 and a guide block 41 fixed on the mounting ring 23, a guide groove 45 matching the guide block 41 is provided on one side of the stabilizing ring 46, and a locking assembly for fixing the guide block 41 to the guide groove 45 is provided on one side of the guide block 41; the locking assembly includes a screw hole 42 provided on one side of the guide block 41 and a threaded hole provided in the guide groove 45, a fixing column 43 is screwed on the guide block 41, and the fixing column 43 is screwed into the threaded hole corresponding to the screw hole 42 through the screw hole 42; a fixing cap 44 is also fixed to one end of the fixing column 43, and a protective ring is installed on the outside of the fixing cap 44.

[0028] Through the above technical solution:

[0029] When the blades are mixed with sand, the blade body 24 is sleeved on the outside of the mounting ring 23. At this time, one side of the guide block 41 is inserted into the guide groove 45. However, the guide block 41 and the guide groove 45 conflict with each other, so that the mounting ring 23 and the stabilizing ring 46 conflict with each other, so that the blade body 24 cannot be moved along the mounting ring 23, which is used to position the blade body 24, and one end of the fixing column 43 is rotated between the screw hole 42. As one end of the fixing column 43 continues to move, it is screwed and fixed to the threaded hole, which is used to stably install the guide block 41 in the guide groove 45, thereby positioning and installing the blade body 24 and the mounting ring 23, increasing the stability of the blade body 24, improving the installation efficiency of the blade body 24, saving time and effort, and further enhancing the practicality of the rotor blade structure.

[0030] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A rotor blade structure for a sand mixer, characterized in that: The invention comprises a rotor body (1), on which a blade assembly (2) is arranged, and the blade assembly (2) is used to evenly mix sand particles. The blade assembly (2) comprises a mounting column (21) sleeved on the outside of the rotor body (1) and a blade body (24) sleeved on the outside of the mounting column (21), a connecting ring (22) sleeved between the blade body (24) and the mounting column (21), and a mounting ring (23) matched with the blade body (24) is installed on the connecting ring (22).

2. A rotor blade structure for a sand mixer according to claim 1, characterized in that: The blade assembly (2) further comprises a fixing ring (26) fixed to one end of the rotor body (1) and a scraping ring (27) fixed to one end of the fixing ring (26); a plurality of scraping blades (28) are fixed to one end of the fixing ring (26) adjacent to the scraping ring (27); and a mixing chamber is formed between the plurality of scraping blades (28) and the scraping ring (27).

3. The rotor blade structure for a sand mixer according to claim 1, characterized in that: A plurality of scraping plates (25) are also fixed to the outside of the blade body (24), and the plurality of scraping plates (25) are arranged in a ring array.

4. The rotor blade structure for a sand mixer according to claim 1, characterized in that: A positioning groove is also provided on the outside of the installation column (21), and a positioning block matching the positioning groove is fixed on the connecting ring (22).

5. The rotor blade structure for a sand mixer according to claim 1, characterized in that: A mounting assembly (4) is arranged between the mounting ring (23) and the blade body (24), the mounting assembly (4) comprising a stabilizing ring (46) fixed on the blade body (24) and a guide block (41) fixed on the mounting ring (23), a guide groove (45) matching with the guide block (41) being provided on one side of the stabilizing ring (46), and a locking assembly for fixing the guide block (41) to the guide groove (45) being provided on one side of the guide block (41).

6. The rotor blade structure for a sand mixer according to claim 5, characterized in that: The locking assembly comprises a screw hole (42) provided on one side of the guide block (41) and a threaded hole provided in the guide groove (45); a fixing column (43) is screwed on the guide block (41), and the fixing column (43) is screwed into the threaded hole corresponding to the screw hole (42) through the screw hole (42).

7. The rotor blade structure for a sand mixer according to claim 6, characterized in that: A fixing cap (44) is also fixed to one end of the fixing column (43), and a protective ring is installed outside the fixing cap (44).

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