Raw material mixing equipment for precoated sand processing
By designing a coating sand processing raw material mixing equipment, the matching structure of the hollow conical support seat and the linkage column is used to realize the dispersed spraying of the methenamine solution, and the central axis drives the stirring blade to stir, solving the existing problem. The problem of uneven distribution of methenamine solution and slow evaporation of ethanol in the equipment improves the mixing efficiency and the quality of the finished product.
Patent Information
- Application Number
- CN202420530465.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-03-19
AI Technical Summary
It is difficult for existing coated sand processing equipment to achieve uniform distribution of Urotropine solution during the stirring process, resulting in low mixing efficiency and slow ethanol evaporation, affecting the quality of finished coated sand.
A kind of raw material mixing equipment for coated sand processing is designed. It adopts the matching structure of the hollow conical support seat and the linkage column. Through the swing of the movable barrel and the spray head on the extension pipe, the methenamine solution is dispersedly sprayed. into the mixing cylinder, and drive the stirring blade through the central shaft to stir, so that the resin is evenly coated on the surface of the sand particles. The equipment has a built-in heater, which is used to dry the coated sand and promote ethanol volatilization.
It achieves uniform coating of methenamine solution and dissolved resin, improves mixing efficiency, and accelerates ethanol volatilization through the heater, significantly improving the quality and production efficiency of the finished coated sand.
Smart Images
Figure CN222370291U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coated sand mixing, in particular to a coating sand processing raw material mixing device. Background Art
[0002] Coated sand is a type of molding sand or core sand that is coated with a layer of solid resin film on the surface of the sand before molding. There are two coating processes: cold coating and hot coating.
[0003] The cold coated sand preparation process is to dissolve the resin with ethanol and add urotropine during the sand mixing process so that the two are coated on the surface of the sand particles. When the existing equipment is used, the dissolved resin and the urotropine solution are poured into the sand particles together, and the two are coated on the surface of the sand particles through sufficient stirring. The raw materials are poured into the stirring equipment at one time, which increases the difficulty of stirring. It takes a long time to stir the sand particles evenly to coat the resin. The feeding in batches increases manpower, especially the urotropine solution cannot be dispersedly added to the raw materials, which greatly reduces the mixing efficiency.
[0004] Therefore, we propose a raw material mixing equipment for coated sand processing. Utility Model Content
[0005] The utility model mainly solves the above technical problems and provides a raw material mixing device for coating sand processing.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a raw material mixing device for coated sand processing, comprising a mixing barrel, a circular arc barrel bottom is provided at the lower end of the mixing barrel, a discharge port is provided on the circular arc barrel bottom, a fixed sleeve is fixedly sleeved at the outer circle of the mixing barrel, a hollow conical support seat is fixedly installed at the lower end of the fixed sleeve, and the mixing barrel is supported by the hollow conical support seat and the fixed sleeve, a bottom plate is fixedly installed inside the hollow conical support seat, a driving motor is provided on the bottom surface of the bottom plate, a central shaft is fixedly installed at the output end of the driving motor, and the central shaft extends to the interior of the mixing barrel;
[0007] A movable barrel is arranged near the upper port in the mixing barrel, and an arc-shaped bottom groove is opened on the bottom surface of the movable barrel. A linkage column is fixedly installed on the upper end of the central axis through a connecting block. The linkage column is inclinedly distributed on the upper end of the central axis. The linkage column is distributed inside the arc-shaped bottom groove. The linkage column is driven to make a circular motion by the rotation of the central axis, and the arc-shaped bottom groove is squeezed by the linkage column, so that the linkage column drives the movable barrel to swing back and forth with the supporting shaft as the center through the arc-shaped bottom groove.
[0008] Preferably, a left-right symmetrical support shaft is fixedly mounted on the inner wall surface of the mixing barrel, and the movable barrel is movably mounted inside the mixing barrel via the support shaft.
[0009] Preferably, stirring blades are fixedly installed on the outer circle of the central axis distributed in the mixing barrel, and the stirring blades are driven by the central axis to stir the materials in the mixing barrel.
[0010] Preferably, a plurality of extension tubes are fixedly mounted on the outer wall of the movable barrel, the plurality of extension tubes are distributed in a circular array with the center of the movable barrel as the center, and a plurality of spray heads are arranged on the bottom surfaces of the plurality of extension tubes.
[0011] Preferably, the movable barrel is provided with a barrel inlet pipe.
[0012] Preferably, a heater is provided on the inner wall surface of the hollow conical support seat.
[0013] Beneficial Effects
[0014] The utility model provides a raw material mixing device for coated sand processing. It has the following beneficial effects:
[0015] (1) In the coated sand processing raw material mixing equipment, the urotropine solution is sprayed into the mixing barrel through the spray heads on the multiple extension pipes, and the central axis rotates to drive the linkage column to make a circular motion, and the linkage column squeezes the arc bottom groove, so that the linkage column drives the movable barrel to swing back and forth with the support shaft as the center through the arc bottom groove. When the movable barrel swings, the urotropine solution is dispersedly sprayed into the mixing barrel, so that the urotropine solution and the dissolved resin are fully in contact with the raw materials in the mixing barrel, so that the urotropine solution and the dissolved resin are evenly coated on the surface of the sand particles, thereby improving the mixing efficiency.
[0016] (2) In the coated sand processing raw material mixing equipment, the coated sand raw material is coated with molten resin and then discharged outward through the discharge port. The discharged coated sand is collected on the bottom plate and dried by a heater to facilitate the rapid volatilization of ethanol on the coated sand to obtain finished coated sand, thereby achieving the effect of accelerating the volatilization efficiency of ethanol on the coated sand. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.
[0018] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.
[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the position structure of the linkage column of the utility model;
[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the bottom surface of the movable barrel of the utility model.
[0022] Legend:
[0023] 1. Mixing barrel; 2. Arc barrel bottom; 3. Discharge port; 4. Fixed sleeve; 5. Hollow conical support seat; 6. Bottom plate; 7. Center axis; 8. Connecting block; 9. Linkage column; 10. Support shaft; 11. Movable barrel; 12. Extension tube; 13. Barrel inlet tube; 14. Arc bottom groove; 15. Heater. DETAILED DESCRIPTION
[0024] 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.
[0025] Embodiment: A raw material mixing device for coated sand processing, such as Figure 1 As shown, it includes a mixing barrel 1, a circular barrel bottom 2 is provided at the lower end of the mixing barrel 1, a discharge port 3 is provided on the circular barrel bottom 2, a fixing sleeve 4 is connected to a fixing sleeve 4 at the outer circumference of the mixing barrel 1, a hollow conical support seat 5 is fixedly installed at the lower end of the fixing sleeve 4, and the mixing barrel 1 is supported by the hollow conical support seat 5 and the fixing sleeve 4, a bottom plate 6 is fixedly installed inside the hollow conical support seat 5, a driving motor is provided on the bottom surface of the bottom plate 6, and a central shaft 7 is fixedly installed at the output end of the driving motor, the central shaft 7 extends to the inside of the mixing barrel 1, and stirring blades are fixedly installed on the outer circumference of the central shaft 7 distributed in the mixing barrel 1, and the stirring blades are driven by the central shaft 7 to stir the materials in the mixing barrel 1;
[0026] like Figure 1 and Figure 2 As shown, a movable barrel 11 is arranged near the upper port in the mixing barrel 1, and a left-right symmetrical support shaft 10 is fixedly installed on the inner wall surface of the mixing barrel 1. The movable barrel 11 is movably installed in the mixing barrel 1 through the support shaft 10. An arc bottom groove 14 is opened on the bottom surface of the movable barrel 11. A linkage column 9 is fixedly installed on the upper end of the central shaft 7 through a connecting block 8. The linkage column 9 is inclinedly distributed on the upper end of the central shaft 7. The linkage column 9 is distributed in the arc bottom groove 14. The linkage column 9 is driven to make a circular motion by the rotation of the central shaft 7. The arc bottom groove 14 is squeezed by the linkage column 9, so that the linkage column 9 drives the movable barrel 11 to swing back and forth with the support shaft 10 as the center through the arc bottom groove 14. A barrel inlet pipe 13 is arranged on the movable barrel 11. When the coated sand is processed, the coated sand raw materials and the molten The molten resin is poured into the mixing barrel 1, and the central shaft 7 drives the stirring blade to stir so that the coated sand raw material and the dissolved resin are fully mixed. The movable barrel 11 stores a urotropine solution. The outer wall surface of the movable barrel 11 is fixedly installed with multiple groups of extension tubes 12. The multiple groups of extension tubes 12 are distributed in a ring formation with the center of the movable barrel 11 as the center. The bottom surfaces of the multiple groups of extension tubes 12 are provided with multiple groups of spray heads. The urotropine solution is sprayed into the mixing barrel 1 through the spray heads on the multiple groups of extension tubes 12. The movable barrel 11 is driven to swing back and forth through the cooperation of the linkage column 9 and the arc bottom groove 14. When the movable barrel 11 swings, it drives the urotropine solution to be dispersedly sprayed into the mixing barrel 1, so that the urotropine solution and the dissolved resin are fully in contact with the raw materials in the mixing barrel 1, and the urotropine solution and the dissolved resin are coated on the surface of the sand particles;
[0027] like Figure 3 As shown, a heater 15 is provided on the inner wall surface of the hollow conical support seat 5. The coated sand raw material is coated with molten resin and then discharged outward through the discharge port 3. The discharged coated sand is collected on the bottom plate 6. The coated sand is dried by the heater 15 to facilitate the rapid volatilization of ethanol on the coated sand, thereby obtaining finished coated sand.
[0028] The working principle of this utility model:
[0029] The urotropine solution is sprayed into the mixing barrel 1 through the spray heads on the multiple groups of extension tubes 12. The movable barrel 11 is driven to swing back and forth through the cooperation of the linkage column 9 and the arc bottom groove 14. The movable barrel 11 drives the urotropine solution to be dispersedly sprayed into the mixing barrel 1 when swinging, so that the urotropine solution and the dissolved resin are fully in contact with the raw materials in the mixing barrel 1, and the urotropine solution and the dissolved resin are coated on the surface of the sand particles.
[0030] The coated sand raw material is coated with molten resin and then discharged outward through the discharge port 3. The discharged coated sand is collected on the bottom plate 6 and dried by the heater 15 to facilitate the rapid volatilization of ethanol on the coated sand to obtain finished coated sand.
[0031] The above shows and describes the basic principle and main features of the utility model and the 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 for explaining the principle of 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 claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A raw material mixing device for coated sand processing, comprising a mixing drum (1), the lower end of the mixing drum (1) is provided with a circular drum bottom (2), the circular drum bottom (2) is provided with a discharge port (3), characterized in that: The outer circumference of the mixing barrel (1) is connected to a fixed sleeve (4), the lower end of the fixed sleeve (4) is fixedly mounted with a hollow conical support seat (5), the interior of the hollow conical support seat (5) is fixedly mounted with a bottom plate (6), the bottom surface of the bottom plate (6) is provided with a driving motor, the output end of the driving motor is fixedly mounted with a central shaft (7), and the central shaft (7) extends into the interior of the mixing barrel (1); A movable barrel (11) is arranged near the upper port in the mixing barrel (1), and an arc-shaped bottom groove (14) is provided on the bottom surface of the movable barrel (11). A linkage column (9) is fixedly mounted on the upper end of the central axis (7) through a connecting block (8), and the linkage column (9) is distributed in an inclined manner at the upper end of the central axis (7), and the linkage column (9) is distributed inside the arc-shaped bottom groove (14).
2. The raw material mixing equipment for coated sand processing according to claim 1 is characterized in that: A left-right symmetrical support shaft (10) is fixedly mounted on the inner wall surface of the mixing barrel (1), and a movable barrel (11) is movably mounted inside the mixing barrel (1) via the support shaft (10).
3. The raw material mixing equipment for coated sand processing according to claim 1 is characterized in that: Stirring blades are fixedly installed on the outer circle of the central axis (7) distributed in the mixing barrel (1).
4. The raw material mixing equipment for coated sand processing according to claim 1 is characterized in that: A plurality of extension tubes (12) are fixedly mounted on the outer wall of the movable barrel (11), and the plurality of extension tubes (12) are distributed in a ring array with the center of the movable barrel (11) as the center, and a plurality of spray heads are arranged on the bottom surfaces of the plurality of extension tubes (12).
5. The raw material mixing equipment for coated sand processing according to claim 1 is characterized in that: The movable barrel (11) is provided with a barrel inlet pipe (13).
6. The raw material mixing equipment for coated sand processing according to claim 1, characterized in that: A heater (15) is provided on the inner wall surface of the hollow conical support seat (5).