Molding sand stirring and conveying device

Abstract

The utility model discloses a molding sand stirring and conveying device which comprises a working table and supporting plates, the supporting plates are symmetrically welded to the two sides of the top of the working table, and a stirring barrel is rotationally connected to the top of the surface of each supporting plate. By adopting the first motor, the second motor, the barrier strip and the stirring blades, after various raw materials for producing molding sand are added, the stirring barrel and the driving shaft can be respectively driven to rotate towards two different directions through the operation of the first motor and the second motor; in this way, raw materials can be scattered by the stirring blades opposite to the barrier strips when the barrier strips in the stirring barrel carry the raw materials to rotate and fall, and then the problem that stirring is insufficient due to the fact that the raw materials in the stirring barrel are mixed in the single direction and cannot make full contact with the raw materials in all layers is solved; the whole stirring and mixing effect can be effectively improved, and the stirring device has the advantages of multiple stirring and good stirring effect.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring, and specifically, to a molding sand stirring and conveying device. Background Technique

[0002] Molding sand is a material used for molding in casting. It is generally composed of materials such as raw sand and molding sand binder in a certain proportion. To cast good castings, the proportion of molding sand needs to be well controlled, and various materials of the molding sand need to be mixed evenly. Since manual mixing is relatively laborious, most of the molding sand used now is mixed by factories. Molding sand factories mostly use stirring devices to stir and mix molding sand.

[0003] In the existing publicly disclosed technology, the publication number is: CN218138929U, a molding sand stirring device, including a bottom plate. A stirring box is installed on the top of the bottom plate. In the middle of the top of the stirring box, a driving motor is installed by screws. The output end of the driving motor is installed with a rotating rod. The bottom end of the rotating rod is installed with a fixing rod by bolts. Four groups of stirring components arranged up and down are sleeved on the outer wall of the fixing rod. The bottom end of the fixing rod is installed with a fixing piece. Two groups of horizontally arranged cross bars are installed on the outer wall of the fixing piece. A rectangular groove is arranged at the bottom of the cross bar. A rubber strip is installed inside the rectangular groove, and the bottom of the rubber strip is attached to the top of the bottom plate. In this application, by installing a cross bar and a rubber strip, the rubber strip is fixedly connected to the cross bar through the rectangular groove and bolts. When the driving motor is started, the rotating rod drives the stirring frame to rotate, and the rubber strip rotates while being attached to the top of the bottom plate, pushing the molding sand raw materials that cannot be stirred by the stirring components in the lower part of the mixture, and stirring the molding sand more evenly.

[0004] However, the above patent still has certain disadvantages when in use: Although it can push the raw materials deposited at the bottom through the rubber strip, the stirring direction inside the box is single, resulting in a relatively fixed movement trend of various raw materials inside, and the raw materials at each level cannot fully contact, thus causing the overall stirring effect to be not very ideal. Moreover, when discharging the molding sand subsequently, due to the height difference with the collection vehicle, the falling molding sand impacts the bottom of the vehicle body, which is likely to cause air flow fluctuations and then lead to the flying of the molding sand, not only polluting the environment but also causing waste of the collected molding sand, and the overall conveying effect is not very good, still having a certain improvement space.

[0005] Regarding the problems in the related technology, no effective solution has been proposed yet. Content of the Utility Model

[0006] (1) Technical Problems to be Solved

[0007] In view of the deficiencies of the prior art, the present utility model provides a molding sand stirring and conveying device, which has the advantages of good stirring effect, less dust during conveying, and multiple stirrings, thereby solving the problems in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned advantages of good stirring effect, less dust during conveying, and multiple stirrings, the specific technical solution adopted by the present utility model is as follows:

[0010] A molding sand stirring and conveying device includes an operating table and a support plate. On both sides of the top of the operating table, support plates are symmetrically welded. At the top surface position of the support plate, a stirring barrel is rotatably connected. Around one side surface of the outer periphery of the stirring barrel, a transmission gear is installed. A bearing ring is sleeved on the other side surface of the outer periphery of the stirring barrel. At the bottom position of the transmission gear, a driving gear is meshed. One end of the driving gear is connected to a first motor through a speed reducer. On the inner surface of the stirring barrel, several groups of baffle strips are installed. In the middle position inside the stirring barrel, a driving shaft is rotatably connected. One end of the driving shaft penetrates through one side of the support plate and is connected to a second motor. On the surface of the driving shaft, several groups of stirring blades are installed.

[0011] Furthermore, in the middle position of the top surface of the stirring barrel, a feed inlet is opened. Below the feed inlet, in the inner position of the surface of the stirring barrel, a sealing groove is opened. Inside the sealing groove, a sealing plate is slidably connected. On one side of the top of the sealing plate, a pull rod is welded. The pull rod is slidably connected to the surface of the stirring barrel. Right below the feed inlet, on the top surface of the operating table, a collection box is slidably connected. In the middle position of the top of the collection box, there is a docking port. Threaded layers are provided on the surface of the docking port and the surface of the feed inlet. The docking port is threadedly connected with a docking screw cylinder on its outer periphery.

[0012] Furthermore, on the top surface of the operating table, guide grooves are symmetrically opened in the middle position. Inside the guide grooves, moving wheels are abutted. The moving wheels are connected to the bottom surface position of the collection box.

[0013] Furthermore, the length of the stirring blades is less than the distance length between the baffle strips.

[0014] Furthermore, the pull rod and the stirring barrel are fixedly connected by bolts.

[0015] Furthermore, the inside of the docking screw cylinder is a hollow structure.

[0016] Furthermore, on the surface of the support plate, a motor bracket for installing the second motor is welded.

[0017] Furthermore, the position of the feed inlet corresponds to the position of the docking port, and they have the same size.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the utility model provides a molding sand stirring and conveying device, which has the following beneficial effects:

[0020] (1) By adopting the first motor, the second motor, the baffle strip and the stirring blades, after all kinds of raw materials for producing molding sand are added, the operation of the first motor and the second motor can drive the stirring barrel and the driving shaft to rotate in two different directions respectively. In this way, when the baffle strip in the stirring barrel carries the raw materials and rotates and falls, it can be dispersed by the stirring blades in the opposite direction, thus avoiding the problem of insufficient stirring caused by the inability of the raw materials at each layer to fully contact due to the mixing of the raw materials in a single direction. It can effectively improve the overall stirring and mixing effect, and has the advantages of multiple stirring and good stirring effect.

[0021] (2) By adopting the docking screw cylinder, after the raw materials are mixed, the discharge operation of the molding sand can be realized by rotating the feed port on the surface of the stirring barrel to the docking port position facing the top of the collecting box. At this time, by rotating the docking screw cylinder, it can be connected with the thread layers on the surfaces of the feed port and the docking port to realize the connection operation in the middle area. In this way, the falling molding sand can fully fall into the collecting box, and the floating objects generated by the falling impact can also be trapped between the connection areas, avoiding leakage, thus preventing the loss and pollution of the molding sand and improving the overall conveying effect, and having the advantage of less conveying dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 FIG. 1 is a schematic structural diagram of a molding sand stirring and conveying device proposed by the present invention;

[0024] Figure 2 FIG. 2 is a schematic internal structure diagram of the adjustment cavity of the present invention;

[0025] Figure 3 FIG. 3 is a schematic structural diagram of the sealing plate of the present invention;

[0026] Figure 4 FIG. 4 is a schematic structural diagram of the shielding curtain of the present invention.

[0027] In the figure:

[0028] 1. Operating table; 2. Driving gear; 3. Reducer; 4. First motor; 5. Support plate; 6. Stirring barrel; 7. Driving shaft; 8. Stirring blade; 9. Transmission gear; 10. Bar; 11. Feeding port; 12. Sealing groove; 13. Sealing plate; 14. Thread layer; 15. Pull rod; 16. Bearing ring; 17. Second motor; 18. Guide groove; 19. Moving wheel; 20. Collection box; 21. Docking port; 22. Docking screw cylinder. Detailed implementation manner

[0029] To further illustrate the embodiments, the present utility model provides drawings, which are part of the disclosure of the present utility model. They are mainly used to illustrate the embodiments and can be combined with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0030] According to an embodiment of the present utility model, a molding sand stirring and conveying device is provided.

[0031] Now, the present utility model will be further described in combination with the drawings and the detailed implementation manner. As Figures 1-4 shown, a molding sand stirring and conveying device according to an embodiment of the present utility model includes an operating table 1 and a support plate 5. Support plates 5 are symmetrically welded on both sides at the top of the operating table 1. A stirring barrel 6 is rotatably connected to the top surface of the support plate 5. A transmission gear 9 is circumferentially installed on one side surface of the outer circumference of the stirring barrel 6. A bearing ring 16 is sleeved on the other side surface of the outer circumference of the stirring barrel 6. A driving gear 2 is meshed and connected to the bottom of the transmission gear 9. One end of the driving gear 2 is connected to the first motor 4 through a reducer 3. A number of groups of bars 10 are circumferentially installed on the inner surface of the stirring barrel 6. A driving shaft 7 is rotatably connected to the middle position inside the stirring barrel 6. One end of the driving shaft 7 penetrates through one side of the support plate 5 and is connected to the second motor 17. A number of groups of stirring blades 8 are circumferentially installed on the surface of the driving shaft 7.

[0032] In one embodiment, a feeding port 11 is opened at the middle position of the top surface of the stirring barrel 6. A sealing groove 12 is opened at the inner position of the surface of the stirring barrel 6 below the feeding port 11. A sealing plate 13 is slidably connected to the inner position of the sealing groove 12. A pull rod 15 is welded to one side at the top of the sealing plate 13. The pull rod 15 is slidably connected to the surface of the stirring barrel 6. A collection box 20 is slidably connected to the top of the operating table 1 directly below the feeding port 11. A docking port 21 is provided at the middle position of the top of the collection box 20. Thread layers 14 are provided on the surface of the docking port 21 and the surface of the feeding port 11. A docking screw cylinder 22 is threadedly connected to the outer circumference of the docking port 21. The setting of the thread layer 14 is to facilitate the connection and use of the docking screw cylinder 22.

[0033] In one embodiment, guide grooves 18 are symmetrically formed in the middle position of the top surface of the workbench 1. A moving wheel 19 is abutted inside the guide groove 18, and the moving wheel 19 is connected to the bottom surface of the collecting box 20. The collecting box 20 is provided for conveying and transferring the molding sand after production is completed.

[0034] In one embodiment, the length of the stirring blade 8 is less than the distance between the retaining bars 10. The length is set to prevent the stirring blade 8 from hitting the retaining bars 10 when rotating. The retaining bars 10 are arranged to carry the molding sand raw materials through their own structures, so that the raw materials can move upward and fall, thereby exposing the raw materials at different positions, improving the contact effect between them, and further enhancing the overall stirring effect.

[0035] In one embodiment, the pull rod 15 is fixedly connected to the stirring barrel 6 by bolts. The pull rod 15 facilitates the movement of the sealing plate 13, and the bolt connection is to ensure the stability during sealing and prevent the leakage of the molding sand caused by movement.

[0036] In one embodiment, the inside of the docking screw cylinder 22 has a hollow structure. The hollow structure is provided to facilitate the export of the molding sand. Threads for connecting with the thread layer 14 are provided at both ends of the docking screw cylinder 22, ensuring the sealing and stability of the feeding port 11 and the discharging of the docking port 21.

[0037] In one embodiment, a motor bracket for installing the second motor 17 is welded on the surface of the support plate 5. The motor bracket facilitates the installation of the second motor 17. Since the types of motors are relatively extensive and rich in actual life, and the use technology is mature, personnel can adjust according to needs, and will not be elaborated here too much.

[0038] In one embodiment, the position of the feeding port 11 corresponds to the position of the docking port 21 and they have the same size. The positions of the feeding port 11 and the docking port 21 are set to ensure that the two can be smoothly attached together during material conveying and discharging, and the size setting is to ensure that the molding sand can be smoothly discharged, avoiding blockage of the molding sand caused by inappropriate size.

[0039] Working principle: During actual use, personnel can remove the bolts at the connection between the pull rod 15 and the mixing barrel 6. Then, moving the pull rod 15 can drive the entire sealing plate 13 to move outward, thereby exposing the sealing groove 12. At this time, various raw materials used for producing molding sand can be added. Then, close the sealing plate 13 again. Then, through the operation of the first motor 4 and the second motor 17, the mixing barrel 6 and the drive shaft 7 can be driven to rotate in two different directions respectively. In this way, when the baffle 10 inside the mixing barrel 6 carries the raw materials and rotates and falls, it can be dispersed by the stirring blades 8 in the opposite direction, thus avoiding the problem of insufficient stirring caused by the inability of the raw materials inside to fully contact each other due to mixing in a single direction, and effectively improving the overall stirring and mixing effect. Then, after the raw materials are mixed, by rotating the feed port 11 on the surface of the mixing barrel 6 to the docking port 21 at the top of the collection box 20, the discharge operation of the molding sand can be realized. At this time, by rotating the docking screw barrel 22, it can be connected to the thread layers 14 on the surfaces of the feed port 11 and the docking port 21 to achieve the connection operation in the middle area. In this way, the falling molding sand can fully fall into the collection box 20, and the floating objects generated by the falling impact can also be confined between the connection areas, avoiding leakage, thereby preventing the loss and pollution of the molding sand, improving the overall feeding effect, and facilitating better use. The whole device has the advantages of good stirring effect, less dust during feeding, and multiple stirring.

[0040] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "rotary connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0041] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A molding sand stirring and feeding device, comprising a workbench (1) and a support plate (5), characterized in that: Support plates (5) are symmetrically welded on both sides of the top of the workbench (1). A stirring barrel (6) is rotatably connected to the top of the surface of the support plate (5). A transmission gear (9) is mounted around the surface of one side of the outer periphery of the stirring barrel (6). A bearing ring (16) is sleeved on the surface of the other side of the outer periphery of the stirring barrel (6). A driving gear (2) is meshedly connected to the bottom of the transmission gear (9). One end of the driving gear (2) is connected to the first motor (4) through a reducer (3). A plurality of groups of retaining bars (10) are mounted around the inner surface of the stirring barrel (6). A driving shaft (7) is rotatably connected to the middle of the inner portion of the stirring barrel (6). One end of the driving shaft (7) passes through one side of the support plate (5) and is connected to the second motor (17). The surface of the driving shaft (7) is mounted around A plurality of groups of stirring blades (8) are provided, a feed port (11) is provided in the middle of the top surface of the stirring barrel (6), a sealing groove (12) is provided below the feed port (11) and located inside the surface of the stirring barrel (6), a sealing plate (13) is slidably connected to the inside of the sealing groove (12), a pull rod (15) is welded to one side of the top of the sealing plate (13), the pull rod (15) is slidably connected to the surface of the stirring barrel (6), a collecting box (20) is slidably connected to the top of the workbench (1) just below the feed port (11), a docking port (21) is provided in the middle of the top of the collecting box (20), a threaded layer (14) is provided on the surface of the docking port (21) and the surface of the feed port (11), and a docking screw barrel (22) is threadedly connected to the outer periphery of the docking port (21).

2. A molding sand stirring and feeding device according to claim 1, characterized in that: A guide groove (18) is symmetrically provided in the middle of the top surface of the workbench (1), a moving wheel (19) is abutted inside the guide groove (18), and the moving wheel (19) is connected to the bottom surface of the collection box (20).

3. The molding sand stirring and feeding device according to claim 1, characterized in that: The length of the stirring blade (8) is smaller than the distance between the baffles (10).

4. The molding sand stirring and feeding device according to claim 1, characterized in that: The pull rod (15) and the mixing barrel (6) are fixed by bolt connection.

5. The molding sand stirring and feeding device according to claim 1, characterized in that: The interior of the docking screw barrel (22) is a hollow structure.

6. The molding sand stirring and feeding device according to claim 1, characterized in that: A motor bracket for mounting the second motor (17) is welded on the surface of the support plate (5).

7. The molding sand stirring and feeding device according to claim 1, characterized in that: The position of the feed port (11) corresponds to the position of the docking port (21), and they have the same size.

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