Flying dust prevention closed sand mixer
By adding a closed cover and a drive motor system to the top of the sand mixer, the safety hazards and dust problems of the sand mixer were solved, and the centralized collection and treatment of dust was achieved.
Patent Information
- Application Number
- CN202520312231.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-02-26
AI Technical Summary
The existing sand mixers have an open structure, which leads to safety hazards and generates a lot of dust.
A closed cover is added to the upper part of the sand mixer body, and the cover is fixed by a clamping component and a drive motor system. Combined with the feed hopper and dust collection pipe, the dust is collected in a centralized manner.
It effectively prevents dust from flying, improves safety, and enables centralized collection and treatment of dust.
Smart Images

Figure CN223960499U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of sand mixer technology, and specifically to a dust-proof enclosed sand mixer. Background Technology
[0002] A sand mixer is a device that mixes the components in molding sand evenly and effectively coats the sand particles with binder. Existing sand mixers are usually open-type structures, which not only pose safety hazards during use but also generate a lot of dust. Summary of the Invention
[0003] The purpose of this invention is to address the shortcomings and deficiencies of the existing technology by providing a dust-proof enclosed sand mixer with a simple structure, reasonable design, and convenient use. A closed cover is added to the upper end of the sand mixer body, and the seal between the cover and the sand mixer body is reinforced by locking the cover.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a sand mixer body, and further includes:
[0005] The machine cover is located on the upper end of the sand mixer body. Extended arc blocks are fixedly installed on the bottom of both the left and right sides of the machine cover, and the inner ring wall of the extended arc block is in contact with the outer ring wall of the sand mixer body.
[0006] The feed hopper is inserted into and fixed inside the upper left side of the machine cover;
[0007] The dust-collecting pipe is embedded and fixed inside the upper right side of the machine cover; a connecting pipe is provided at the outer end of the dust-collecting pipe, and a dust collection bag is provided at the other end of the connecting pipe.
[0008] The support ring is sleeved and fixed on the body of the sand mixer, and the machine cover is in contact with the upper side of the support ring. Arc grooves are opened on both the left and right sides of the inner ring wall of the support ring, and the extended arc block passes through the arc groove.
[0009] Supporting bosses, there are two supporting bosses, which are respectively fixedly installed on the outer ring walls on the left and right sides of the supporting ring;
[0010] The clamping components are two in number, each disposed on the lower side of the support boss;
[0011] Through the above technical solution design, a machine cover is added to the upper end of the sand mixer body. When in use, the machine cover is placed on the sand mixer body, and the extended arc block is inserted into the arc groove of the support ring. The extension arc block is fixed by the clamping component to fix the machine cover. A feed hopper is added to the upper side of the machine cover to facilitate feeding. The dust generated inside the sand mixer body enters the dust collection bag from the dust emission pipe.
[0012] As a further improvement of the present invention, the clamping component includes:
[0013] A support block, wherein the support block is fixedly disposed on the outer bottom of the support boss;
[0014] A support back plate is fixedly installed at the bottom rear side of the support boss, and the support back plate is connected to the support block.
[0015] The drive motor is fixedly mounted on the outside of the support block via a motor bracket; the output shaft of the drive motor passes through the support block and is equipped with a lead screw.
[0016] The driving block is located at the bottom of the supporting boss and is threaded onto the lead screw; the bottom of the driving block is provided with teeth.
[0017] A rotating gear is meshed on the lower side of the drive block, and a rotating shaft is inserted and fixed inside the rotating gear. The rear end of the rotating shaft is screwed into the support back plate through a bearing.
[0018] A rotating component is sleeved and fixed on a rotating shaft, and the rotating component is located on the front side of the rotating gear; a moving groove is provided on the lower side of the rotating component.
[0019] The "U"-shaped guide is fixedly installed on the front side wall of the support back plate and is located on the lower side of the moving block; the moving block is slidably inserted inside the "U"-shaped guide and a moving rod is provided on the front side of the moving block, which is slidably inserted into the moving groove of the rotating part; the inner end of the moving block is inserted into the outer ring wall of the extended arc block.
[0020] Through the above technical solution design, the lead screw drives the drive block by thread, meshes with the rotating gear to drive the rotating part to rotate around the screw connection center of the rotating shaft. The rotation of the rotating part drives the moving rod inside it, causing the moving block to move.
[0021] As a further improvement of the present invention, the support block is provided with a through groove, and the through groove is configured to cooperate with the moving block;
[0022] With the above technical solution design, the moving block is inserted into the through groove when it moves outward.
[0023] As a further improvement of the present invention, a fixing ring is fitted and fixed on the feed hopper; a cover is inserted into the feed hopper, and the outer convex ring of the cover is engaged at the upper end of the feed hopper and contacts the upper side of the fixing ring.
[0024] The above technical solution is used to enclose the feed hopper.
[0025] As a further improvement of the present invention, a locking sleeve is movably sleeved on the feed hopper, and the locking sleeve is in contact with the lower side of the fixed ring. The locking sleeve is screwed onto the outer ring wall of the cover by a threaded connection.
[0026] The above technical solution design strengthens the stability of the seal.
[0027] As a further improvement of the present invention, handles are provided at the upper ends of the outer ring walls on both the left and right sides of the cover.
[0028] The above technical solution design facilitates the removal of the machine cover.
[0029] The working principle of this invention is as follows: A cover is added to the upper end of the sand mixer body. In use, the cover is placed on the sand mixer body, and the extended arc block is inserted into the arc groove of the support ring. The drive motors on the left and right sides are started, and the lead screws drive the drive blocks threadedly, which in turn drive the rotating gears, causing the rotating parts to rotate around the pivot center of the rotating shaft. The rotation of the rotating parts drives the moving rod inside, causing the moving block to move until the moving block is inserted into the extended arc block, thus fixing the cover to the sand mixer body. In use, first rotate the locking sleeve to disengage it from the cover and open the cover to add material into the feed hopper. After the material is added, insert the cover back into the feed hopper and rotate the locking sleeve again to reinforce the cover. Dust generated inside the sand mixer body enters the dust collection bag through the dust emission pipe.
[0030] Compared with the prior art, the beneficial effects of the present invention are:
[0031] 1. Add a cover to the top of the existing sand mixer body to make it closed, prevent dust from flying, and make it safer;
[0032] 2. Add a feed hopper and a dust collection pipe inside the machine cover. This not only facilitates the addition of materials but also guides the dust, allowing the dust generated during processing to be collected in the dust collection pipe.
[0033] 3. Add extended arc blocks on the left and right sides of the cover, and let the extended arc blocks pass through the arc groove to strengthen the stability of the cover.
[0034] 4. Simply start the drive motor to drive the drive block and engage the rotating gear to rotate, thereby causing the rotating component to move the moving block and insert the extended arc block. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the structure of this utility model.
[0036] Figure 2 yes Figure 1 A schematic diagram of the southeast isometric structure.
[0037] Figure 3 This is a schematic diagram of the connection structure of the cover and support ring in this utility model.
[0038] Figure 4 This is a schematic diagram of the feed hopper in this utility model.
[0039] Figure 5 This is a schematic diagram of the clamping component in this utility model.
[0040] Explanation of reference numerals in the attached figures:
[0041] 1. Sand mixer body; 2. Machine cover; 3. Extending arc block; 4. Feed hopper; 5. Dust-generating pipe; 6. Connecting pipe; 7. Dust collection bag; 8. Support ring; 9. Arc groove; 10. Support boss; 11. Clamping assembly; 12. Support block; 13. Through groove; 14. Support back plate; 15. Drive motor; 16. Screw; 17. Drive block; 18. Rotating gear; 19. Rotating component; 10. Moving groove; 10. Moving groove; 10. U-shaped guide frame; 10. Moving block; 10. Moving rod; 10. Fixing ring; 11. Cover; 12. Locking sleeve; 13. Handle; 14. Detailed Implementation
[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1:
[0043] Please see Figures 1-5 This embodiment includes a sand mixer body 1, and also includes:
[0044] The machine cover 2 is installed on the upper end of the sand mixer body 1. Extended arc blocks 3 are fixedly installed on the bottom of both the left and right sides of the machine cover 2, and the inner ring wall of the extended arc block 3 is in contact with the outer ring wall of the sand mixer body 1. Handles 14 are installed on the upper end of the outer ring wall on both the left and right sides of the machine cover 2.
[0045] The feed hopper 4 is inserted and fixed inside the upper left side of the machine cover 2; a fixing ring 11 is sleeved and fixed on the feed hopper 4; a cover 12 is inserted inside the feed hopper 4, and the outer protruding ring of the cover 12 is engaged at the upper end of the feed hopper 4 and contacts the upper side of the fixing ring 11; a locking sleeve 13 is movably sleeved on the feed hopper 4, and the locking sleeve 13 contacts the lower side of the fixing ring 11, and the locking sleeve 13 is screwed onto the outer ring wall of the cover 12 by thread.
[0046] Dust-generating pipe 5 is embedded and fixed inside the upper right side of the machine cover 2; a connecting pipe 6 is provided at the outer end of the dust-generating pipe 5, and a dust collection bag 7 is provided at the other end of the connecting pipe 6.
[0047] The support ring 8 is sleeved and fixed on the main body 1 of the sand mixer, and the cover 2 is in contact with the upper side of the support ring 8. The left and right sides of the inner ring wall of the support ring 8 are provided with arc grooves 8-1, and the extended arc block 3 passes through the arc grooves 8-1.
[0048] Supporting bosses 9, there are two supporting bosses 9, which are respectively fixedly installed on the outer ring walls on the left and right sides of the supporting ring 8;
[0049] Two clamping components 10 are respectively disposed on the lower side of the support boss 9;
[0050] Through the above technical solution design, a cover 2 is added to the upper end of the sand mixer body 1. When in use, the cover 2 covers the sand mixer body 1, the extended arc block 3 is inserted into the arc groove 8-1 of the support ring 8, and the extension arc block 3 is fixed by the clamping component 10 to fix the cover 2. A feed hopper 4 is added to the upper side of the cover 2 for feeding. The dust generated inside the sand mixer body 1 enters the dust collection bag 7 from the dust pipe 5. Example 2:
[0051] Please see Figures 1-5 Based on Embodiment 1, a further improvement is made, wherein the clamping assembly 10 comprises:
[0052] Support block 10-1, the support block 10-1 is fixedly installed on the outer bottom of the support boss 9;
[0053] Support back plate 10-2 is fixedly installed at the rear bottom of support boss 9, and support back plate 10-2 is connected to support block 10-1.
[0054] The drive motor 10-3 is fixedly mounted on the outside of the support block 10-1 via a motor bracket; the specific model of the drive motor 10-3 is purchased directly from the market and installed according to actual usage requirements; the output shaft of the drive motor 10-3 passes through the support block 10-1 and is equipped with a lead screw 10-4.
[0055] The drive block 10-5 is located at the bottom of the support boss 9 and is threaded onto the lead screw 10-4; the bottom of the drive block 10-5 is provided with teeth.
[0056] Rotating gear 10-6 is meshed on the lower side of drive block 10-5, and a rotating shaft is inserted and fixed inside the rotating gear 10-6. The rear end of the rotating shaft is screwed into the support back plate 10-2 through a bearing.
[0057] Rotating component 10-7 is sleeved and fixed on the rotating shaft, and is located on the front side of the rotating gear 10-6; a moving groove 10-7-1 is provided on the lower side of the rotating component 10-7.
[0058] The U-shaped guide 10-8 is fixedly mounted on the front side wall of the support back plate 10-2 and is located below the movable block 10-9. The movable block 10-9 slides through the U-shaped guide 10-8, and a movable rod 10-10 is provided on the front side of the movable block 10-9. The movable rod 10-10 slides through the movable groove 10-7-1 of the rotating component 10-7. The inner end of the movable block 10-9 passes through the outer annular wall of the extension arc block 3. A through groove 10-1-1 is provided in the support block 10-1, and the through groove 10-1-1 is configured to cooperate with the movable block 10-9.
[0059] Through the above technical solution design, the lead screw 10-4 drives the drive block 10-5 by thread, and meshes with the rotating gear 10-6 to drive the rotating part 10-7 to rotate around the screw connection center of the rotating shaft. The rotation of the rotating part 10-7 drives the internal moving rod 10-10, which in turn moves the moving block 10-9.
[0060] When using this invention, a cover 2 is added to the upper end of the sand mixer body 1. During use, the cover 2 covers the sand mixer body 1. The extended arc block 3 is inserted into the arc-shaped groove 8-1 of the support ring 8. The drive motors 10-3 on the left and right sides are started, causing the lead screw 10-4 to thread-drive the drive block 10-5, which in turn drives the rotating gear 10-6, causing the rotating component 10-7 to rotate around the pivot center of the rotating shaft. The rotation of the rotating component 10-7 drives the internal moving rod 10-10. Move the movable block 10-9 until it is inserted into the extension arc block 3, so that the cover 2 is fixed on the sand mixer body 1. When in use, first rotate the locking sleeve 13 to disengage it from the cover 12 and open the cover 12. Then add material into the feed hopper 4. After the material is added, insert the cover 12 into the feed hopper 4 and rotate the locking sleeve 13 again to reinforce the cover 12. The dust generated inside the sand mixer body 1 enters the dust collection bag 7 from the dust pipe 5.
[0061] Compared with the prior art, the beneficial effects of the present invention are:
[0062] 1. Add a cover 2 to the upper part of the existing sand mixer body 1 to make it closed, so as to prevent dust from flying and make it safer;
[0063] 2. Add a feed hopper 4 and a dust collection pipe 5 inside the machine cover 2. This facilitates the addition of materials and guides the dust, allowing the dust generated during processing to be collected in the dust collection pipe 5.
[0064] 3. Extended arc blocks 3 are added to the left and right sides of the cover 2, and the extended arc blocks 3 pass through the arc groove 8-1 to strengthen the stability of the cover 2.
[0065] 4. Simply start the drive motor 10-3 to drive the drive block 10-5 and engage the rotating gear 10-6 to rotate, so that the rotating part 10-7 drives the moving block 10-9 to move and insert the extension arc block 3.
[0066] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.
Claims
1. A dust-proof enclosed sand mixer, comprising a sand mixer body (1), characterized in that, It also includes: Machine cover (2), the machine cover (2) is placed on the upper end of the sand mixer body (1), and the bottom of the left and right sides of the machine cover (2) are fixedly provided with extension arc blocks (3), and the inner ring wall of the extension arc block (3) is in contact with the outer ring wall of the sand mixer body (1). Feed hopper (4), the feed hopper (4) is inserted and fixed inside the upper left side of the machine cover (2); Dust-collecting pipe (5) is embedded and fixed inside the upper right side of the cover (2); a connecting pipe (6) is provided at the outer end of the dust-collecting pipe (5), and a dust collection bag (7) is provided at the other end of the connecting pipe (6). Support ring (8), the support ring (8) is sleeved and fixed on the body (1) of the sand mixer, and the cover (2) is in contact with the upper side of the support ring (8). Arc grooves (8-1) are opened on both the left and right sides of the inner ring wall of the support ring (8), and the extended arc block (3) passes through the arc groove (8-1). Support boss (9), there are two support bosses (9), which are respectively fixed on the outer ring walls on the left and right sides of the support ring (8); The clamping assembly (10) consists of two parts, which are respectively disposed on the lower side of the support boss (9).
2. The dust-proof enclosed sand mixer according to claim 1, characterized in that: The clamping assembly (10) includes: Support block (10-1), the support block (10-1) is fixedly disposed on the outer bottom of the support boss (9); The support back plate (10-2) is fixedly installed on the rear bottom of the support boss (9), and the support back plate (10-2) is connected to the support block (10-1); The drive motor (10-3) is fixedly mounted on the outside of the support block (10-1) by a motor bracket; the output shaft of the drive motor (10-3) passes through the support block (10-1) and is provided with a lead screw (10-4). The drive block (10-5) is located at the bottom of the support boss (9) and is threaded onto the lead screw (10-4); the bottom of the drive block (10-5) is provided with teeth. A rotating gear (10-6) is meshed on the lower side of the drive block (10-5), and a rotating shaft is inserted and fixed inside the rotating gear (10-6). The rear end of the rotating shaft is screwed into the support back plate (10-2) through a bearing. Rotating component (10-7), wherein the rotating component (10-7) is sleeved and fixed on the rotating shaft, and the rotating component (10-7) is located on the front side of the rotating gear (10-6); a moving groove (10-7-1) is provided on the lower side of the rotating component (10-7). The "U"-shaped guide (10-8) is fixedly installed on the front side wall of the support back plate (10-2) and is located on the lower side of the moving block (10-9). The moving block (10-9) is slidably inserted inside the "U"-shaped guide (10-8), and a moving rod (10-10) is provided on the front side of the moving block (10-9). The moving rod (10-10) is slidably inserted into the moving groove (10-7-1) of the rotating part (10-7). The inner end of the moving block (10-9) is inserted into the outer ring wall of the extension arc block (3).
3. The dust-proof enclosed sand mixer according to claim 2, characterized in that: The support block (10-1) has a through groove (10-1-1) inside, and the through groove (10-1-1) is configured to cooperate with the moving block (10-9).
4. The dust-proof enclosed sand mixer according to claim 1, characterized in that: A fixing ring (11) is fitted and fixed on the feed hopper (4); a cover (12) is inserted inside the feed hopper (4), and the outer convex ring of the cover (12) is engaged at the upper end of the feed hopper (4) and is in contact with the upper side of the fixing ring (11).
5. The dust-proof enclosed sand mixer according to claim 1, characterized in that: The feed hopper (4) is movably fitted with a locking sleeve (13), and the locking sleeve (13) is in contact with the lower side of the fixing ring (11). The locking sleeve (13) is screwed onto the outer ring wall of the cover (12) by a threaded connection.
6. The dust-proof enclosed sand mixer according to claim 1, characterized in that: The upper ends of the outer ring walls on both the left and right sides of the cover (2) are provided with handles (14).