A sand mixing device for ductile iron processing
By designing a sand mixing device with translation components and reverse stirring functions, the problem of uneven distribution of auxiliary materials during the mixing of ductile cast iron auxiliary materials is solved, and the sand mixing efficiency and mixing uniformity are significantly improved.
Patent Information
- Application Number
- CN202520372810.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2035-03-05
AI Technical Summary
During the mixing process of ductile iron auxiliary materials, the existing sand mixing equipment has uneven distribution of auxiliary materials, resulting in low sand mixing efficiency.
A sand mixing device for processing ductile iron is designed, including a mixer and a storage box. The storage box is driven horizontally to move back and forth through the translation component to ensure that the subsequent input of the auxiliary materials are evenly spread on the mixed auxiliary materials. At the same time, the mixing parts are driven in reverse stirring using a four-gear transmission box and a three-gear transmission box to improve mixing efficiency.
Through the uniform distribution of the auxiliary materials, the sand mixing efficiency of the ductile iron auxiliary materials is significantly improved, avoiding the auxiliary materials falling in one place, and improving the uniformity and efficiency of mixing.
Smart Images
Figure CN222710748U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand mixing, in particular to a sand mixing device for processing ductile iron. Background Art
[0002] Ductile iron is a type of cast iron in which carbon is precipitated in the form of spherical graphite during the solidification process of molten iron. It has the characteristics of high strength and good plasticity. Ductile iron also contains various auxiliary materials: major alloying elements such as C, Si, Mn, P, S, trace alloying elements such as Bi and B, and rare earth elements such as Ce and Y, which will affect the strength, elongation and performance of ductile iron.
[0003] When smelting ductile iron materials, the raw materials (pig iron, scrap iron) need to be put into the melting furnace in proportion, and then the auxiliary materials mixed by the mixer are put in to obtain ductile iron materials that meet specific requirements. The mixer is a sand mixing equipment composed of a bidirectional rotary vane, a mixing box, a reducer unit, a feed hopper, a discharge valve and other structures. Various raw materials are directly put in from the feed hopper in sequence, and the reducer unit rotates the bidirectional rotary vane to mix the auxiliary materials to achieve the purpose of mixing; however, the process of putting in various auxiliary materials in sequence during mixing is not conducive to the rapid distribution of the auxiliary materials put in later, and the sand mixing efficiency is low.
[0004] Therefore, in order to solve the above problems, a sand mixing device for ductile iron processing is proposed. Utility Model Content
[0005] The purpose of the utility model is to provide a sand mixing device for ductile iron processing, which can improve the sand mixing efficiency of ductile iron auxiliary materials, thereby solving the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand mixing device for ductile iron processing, comprising a mixer and a storage box, a rectangular groove is provided on the top of the mixer, a storage box is slidably installed in the rectangular groove, an electromagnetic valve is installed at the bottom of the storage box, support plates are fixedly installed on both sides of the storage box, a pair of stirring members are rotatably installed inside the storage box, the upper side of one of the support plates is connected to the stirring member on the same side through a four-gear transmission box, and the upper side of the other support plate is connected to the stirring member on the same side through a three-gear transmission box, a pair of racks are fixedly installed on the upper side of the mixer, the lowermost gears in the four-gear transmission box and the three-gear transmission box respectively pass through the support plate and are meshed with the racks on the same side, and a translation component for driving the storage box is installed on the upper side of the mixer.
[0007] Specifically, the stirring element includes a transmission shaft, a turntable and a paddle. A pair of transmission shafts are rotatably installed inside the storage box. Turntables are fixedly installed at the ends of the transmission shafts close to each other. The turntables have different diameters, and paddles are evenly fixedly installed on the circumferential side of the turntable.
[0008] Furthermore, the cross section of the paddle is arc-shaped.
[0009] Furthermore, the rotating disk is circumferentially provided with through grooves.
[0010] Specifically, the translation assembly includes an electric lead screw module and a linear guide fixedly installed on the upper side of the mixer, the electric lead screw module and the linear guide are symmetrically distributed on both sides of the rectangular groove, and the slides of the electric lead screw module and the linear guide are respectively fixedly assembled with the support plates on the same side.
[0011] Specifically, accordion protective covers are fixedly installed between the two ends of the rectangular groove and the material storage box.
[0012] Specifically, a pair of guide wheels are fixedly mounted on the end of the lower surface of the support plate away from the material storage box, and the guide wheels roll on the upper surface of the mixer.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] In order to prevent the input materials from being concentrated in one place in the mixer, the translation component can drive the storage box and other structures to move horizontally back and forth, so that the auxiliary materials input later are evenly spread on the auxiliary materials being mixed, thereby improving the uniformity of distribution;
[0015] The lowest gear in the four-gear transmission box and the three-gear transmission box can run on the rack, so that the two stirring parts can reversely stir the various auxiliary materials inside the storage box, pre-mix the stored auxiliary materials, and further improve the mixing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic front view of the structure of the utility model;
[0017] Figure 2 It is a schematic top view of the structure of the top of the mixing box in the mixer of the utility model;
[0018] Figure 3 It is a structural schematic diagram of the material storage box of the utility model;
[0019] Figure 4 It is a partial schematic diagram of the guide wheel of the utility model;
[0020] Figure 5 It is a schematic cross-sectional view of the structure of the material storage box of the utility model from the top view;
[0021] Figure 6 This is a schematic structural stereogram of the stirring element of the utility model.
[0022] In the figure: 1. mixer, 2. three-gear transmission box, 3. support plate, 4. storage box, 5. rectangular groove, 6. rack, 7. four-gear transmission box, 8. stirring element, 81. transmission shaft, 82. turntable, 83. through groove, 84. paddle, 9. translation assembly, 91. electric screw module, 92. linear guide, 10. accordion protective cover, 11. electromagnetic valve, 12. guide wheel. 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] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The utility model provides a sand mixing device for ductile iron processing, including a mixer 1 and a storage box 4. The mixer 1 is an existing device for mixing ductile iron auxiliary materials. The storage box 4 is an existing container composed of a box body, a lockable box cover and other structures, and is used to temporarily store various ductile iron auxiliary materials.
[0025] A rectangular groove 5 is provided on the top of the mixer 1, and a storage box 4 is slidably installed in the rectangular groove 5. An electromagnetic valve 11 is installed at the bottom of the storage box 4. The electromagnetic valve 11 is preferably an electromagnetic butterfly valve, which is used to control the discharge of ductile iron auxiliary materials in the storage box 4; support plates 3 are fixedly installed on both sides of the storage box 4, and a pair of stirring members 8 are rotatably installed inside the storage box 4. The stirring members 8 are used to stir the ductile iron auxiliary materials inside the storage box 4. The upper side of one support plate 3 is connected to the stirring member 8 on the same side through a four-gear transmission box 7, and the upper side of the other support plate 3 is connected to the stirring member 8 on the same side through a three-gear transmission box 2; the four-gear transmission box 7 is an existing component composed of a box shell and four gears meshing in sequence inside, and the three-gear transmission box 2 is an existing component composed of a box shell and three gears meshing in sequence inside, and the four-gear transmission box 7 and the three-gear transmission box 2 are used to transmit the stirring members 8 respectively, and because of the different number of gears, the two stirring members 8 have different rotation directions, which is conducive to improving the efficiency of mixing and stirring.
[0026] A pair of racks 6 are fixedly installed on the upper side of the mixer 1. The lowermost gears in the four-gear transmission box 7 and the three-gear transmission box 2 pass through the support plate 3 respectively and are meshed with the racks 6 on the same side. A translation assembly 9 for driving the storage box 4 is installed on the upper side of the mixer 1; the translation assembly 9 can translate the storage box 4 horizontally and reciprocatingly, so that the lowermost gears in the four-gear transmission box 7 and the three-gear transmission box 2 run on the racks 6, and then transmit the stirring member 8 respectively.
[0027] See also Figure 5 and Figure 6 The stirring member 8 includes a transmission shaft 81, a turntable 82 and a paddle 84. A pair of transmission shafts 81 are rotatably installed inside the storage box 4. Turntables 82 are fixedly installed at the ends of the transmission shafts 81 close to each other. The diameters of the turntables 82 are different, and the paddles 84 are evenly fixedly installed on the circumferential side of the turntable 82; each turntable 82 is installed with 3 to 6 paddles 84. When the two transmission shafts 81 rotate the turntables 82 in opposite directions, the two groups of paddles 84 can rotate in different directions, so that the ductile iron auxiliary materials can be mixed more fully.
[0028] The cross section of the paddle 84 is arc-shaped, which can improve the smoothness of the paddle 84 in moving the ductile iron auxiliary material.
[0029] The turntable 82 is provided with through grooves 83 in a circumferential manner, which can reduce the area of the ductile iron auxiliary material blocked by the turntable 82 and ensure space for the ductile iron auxiliary material to flow.
[0030] See also Figure 2 The translation assembly 9 includes an electric lead screw module 91 and a linear guide 92 fixedly installed on the upper side of the mixer 1. The electric lead screw module 91 and the linear guide 92 are existing components. The electric lead screw module 91 and the linear guide 92 are symmetrically distributed on both sides of the rectangular groove 5. The slides of the electric lead screw module 91 and the linear guide 92 are respectively fixedly assembled with the support plate 3 on the same side; the electric lead screw module 91 can translate the material storage box 4 via the slide and the support plate 3, and the linear guide 92 is used to assist the translation of the material storage box 4, thereby ensuring the supporting capacity of the material storage box 4 and improving the smoothness of the translation.
[0031] An accordion protective cover 10 is fixedly installed between the two ends of the rectangular groove 5 and the material storage box 4. The accordion protective cover 10 is a foldable and retractable existing component, which is used to block the rectangular groove 5 to prevent dust generated when mixing ductile iron auxiliary materials in the mixer 1 from overflowing from the rectangular groove 5.
[0032] See also Figure 4 A pair of guide wheels 12 are fixedly installed on the end of the lower surface of the support plate 3 away from the storage box 4. The guide wheels 12 roll on the upper surface of the mixer 1. The guide wheels 12 are used to auxiliary support the support plate 3 and improve the load-bearing capacity of the support plate 3.
[0033] The working principle of this embodiment:
[0034] The electromagnetic valve 11 and the electric lead screw module 91 are electrically connected to the controller of the mixer 1 through wires.
[0035] When in use, the largest amount of the mixed ductile iron auxiliary materials is first put into the storage box 4 via the external conveyor. At this time, the electromagnetic valve 11 is opened, and the largest amount of auxiliary materials can directly enter the mixing box of the mixer 1.
[0036] The electromagnetic valve 11 is controlled to be closed, and two or more auxiliary materials in smaller quantities are simultaneously put into the storage box 4 for sealed storage. As the mixing work of the mixer 1 proceeds, the translation assembly 9 can reciprocate the storage box 4 horizontally, and the lower gears in the four-gear transmission box 7 and the three-gear transmission box 2 run on the rack 6, so that the two stirring members 8 can reversely stir the various auxiliary materials inside the storage box 4 and pre-mix them first. At this time, the electromagnetic valve 11 opens a small opening, and the preliminary mixed auxiliary materials can be slowly put into the mixing box of the mixer 1 and evenly sprinkled in the auxiliary materials being mixed, which can avoid concentrated delivery in one place and improve the mixing efficiency.
[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A sand mixing device for ductile iron processing, comprising a mixer (1) and a material storage box (4), characterized in that: The top of the mixer (1) is provided with a rectangular groove (5), a material storage box (4) is slidably mounted in the rectangular groove (5), a solenoid valve (11) is mounted at the bottom of the material storage box (4), support plates (3) are fixedly mounted on both sides of the material storage box (4), a pair of stirring members (8) are rotatably mounted inside the material storage box (4), the upper side of one of the support plates (3) is connected to the stirring member (8) on the same side through a four-gear transmission box (7), and the upper side of the other support plate (3) is connected to the stirring member (8) on the same side through a three-gear transmission box (2), a pair of racks (6) are fixedly mounted on the upper side of the mixer (1), the lowermost gears in the four-gear transmission box (7) and the three-gear transmission box (2) respectively pass through the support plate (3) and are meshed with the racks (6) on the same side, and a translation assembly (9) for driving the material storage box (4) is mounted on the upper side of the mixer (1).
2. The sand mixing device for ductile iron processing according to claim 1, characterized in that: The stirring member (8) comprises a transmission shaft (81), a rotating disk (82) and a paddle (84); a pair of transmission shafts (81) are rotatably mounted inside the material storage box (4); a rotating disk (82) is fixedly mounted on one end of the transmission shafts (81) close to each other; the rotating disks (82) have different diameters; and the paddles (84) are evenly fixedly mounted on the circumferential side of the rotating disk (82).
3. The sand mixing device for ductile iron processing according to claim 2, characterized in that: The cross section of the paddle (84) is in the shape of an arc.
4. The sand mixing device for ductile iron processing according to claim 2, characterized in that: The rotating disk (82) is provided with a through slot (83) in a circumferential manner.
5. The sand mixing device for ductile iron processing according to claim 1, characterized in that: The translation assembly (9) comprises an electric lead screw module (91) and a linear guide rail (92) fixedly mounted on the upper side of the mixer (1); the electric lead screw module (91) and the linear guide rail (92) are symmetrically distributed on both sides of the rectangular groove (5); and the slides of the electric lead screw module (91) and the linear guide rail (92) are respectively fixedly assembled with the support plate (3) on the same side.
6. The sand mixing device for ductile iron processing according to claim 1, characterized in that: An accordion protective cover (10) is fixedly installed between the two ends of the rectangular groove (5) and the material storage box (4).
7. The sand mixing device for ductile iron processing according to claim 1, characterized in that: A pair of guide wheels (12) are fixedly mounted on the end of the lower surface of the support plate (3) away from the material storage box (4), and the guide wheels (12) roll on the upper surface of the mixer (1).